IN THE
SUPREME COURT OF THE STATE OF ARIZONA
DIANNAH DINSMOOR,
Plaintiff/Appellant,
v.
CITY OF PHOENIX, A MUNICIPAL CORPORATION; DEER VALLEY UNIFIED
SCHOOL DISTRICT NO. 97 OF MARICOPA COUNTY, A POLITICAL
SUBDIVISION OF THE STATE OF ARIZONA; LYNN MILLER AND JANE DOE
MILLER, HUSBAND AND WIFE; KIMBERLY HEINZ AND JOHN DOE HEINZ,
HUSBAND AND WIFE; KENNETH PALMER AND JANE DOE PALMER, HUSBAND
AND WIFE,
Defendants/Appellees.
No. CV-20-0214-PR
August 6, 2021
Appeal from the Superior Court in Maricopa County
The Honorable David B. Gass, Judge (Ret.)
No. CV2015-001448
AFFIRMED
Opinion of the Court of Appeals, Division One
249 Ariz. 192 (App. 2020)
Filed June 30, 2020
VACATED IN PART
COUNSEL:
Bradley R. Jardine (argued), Michael Warzysnki, Jardine, Baker, Hickman
& Houston, P.L.L.C., Phoenix, Attorneys for Deer Valley Unified School
District No. 97, Lynn Miller, and Kimberly Heinz
David L. Abney (argued), Ahwatukee Legal Office, P.C., Phoenix; Ryan
Skiver, The Skiver Law Firm, Scottsdale, Attorneys for Diannah Dinsmoor
DINSMOOR V. CITY OF PHOENIX, ET AL.
Opinion of the Court
Lynne C. Adams, Eric M. Fraser, Hayleigh S. Crawford, Osborn Maledon,
P.A., Phoenix, Attorneys for Amici Curiae Arizona Charter Schools
Association, Arizona School Boards Association, and Arizona School Risk
Retention Trust
VICE CHIEF JUSTICE TIMMER authored the opinion of the Court, in which
JUSTICES BOLICK, LOPEZ, BEENE, MONTGOMERY, and PELANDER
(RETIRED)* joined.**
VICE CHIEF JUSTICE TIMMER, opinion of the Court:
¶1 Matthew and Ana were sophomores at Sandra Day O’Connor
High School in the Deer Valley Unified School District when they began
dating. After the two became entangled in a dispute at school involving
Matthew’s ex-girlfriend, Ana agreed to meet Matthew after school at a
friend’s home to talk matters over. While there, Matthew shot and killed
Ana and then killed himself. School personnel knew that Ana planned to
meet Matthew that day. They also knew that Matthew had been violent
with his ex-girlfriend and had possibly threatened her the previous day.
Regardless, they did not take any action to protect Ana. The issue before
us is whether the school owed Ana a duty of care. We hold it did not owe
her a duty under the circumstances here.
BACKGROUND
¶2 Matthew and Ana were in a dating relationship before
breaking up during the fall of 2013. Matthew then began dating Raven.
During their relationship, Matthew told Raven that Ana had been making
* Chief Justice Brutinel is recused from this matter. Pursuant to article
6, section 3 of the Arizona Constitution, Justice John Pelander (Ret.), of the
Arizona Supreme Court, was designated to sit in this matter.
** Justice Andrew W. Gould (Ret.) announced his retirement from the
Court before the oral argument in this case. He did not participate in
deciding the case or in drafting this opinion.
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DINSMOOR V. CITY OF PHOENIX, ET AL.
Opinion of the Court
derogatory remarks about her. Raven broke up with Matthew in January
2014.
¶3 Soon after their break-up, Matthew taunted Raven at school,
and she responded by slapping his face. Matthew retaliated by shoving
her to the ground and shaking her. Consequently, the school suspended
Raven for five days and suspended Matthew for three days. Matthew did
not have any other disciplinary incidents while attending the school.
¶4 Matthew and Ana started dating again, and Matthew told her
that Raven had been making derogatory comments about her. On
March 5, Ana heard that Raven wanted to hire someone to beat up the
couple. Ana approached Raven during lunch at school, and in the ensuing
conversation Raven denied harboring ill feelings toward Ana or intending
to hurt her. The girls compared notes and concluded that Matthew had
been attempting to play them against each other so they would fight over
him. According to Raven, Ana was livid and immediately walked over to
Matthew, who had been watching, and yelled at him.
¶5 The next day, March 6, Matthew texted Ana, “We’ll take care
[sic] it when she’s walking home from the bus,” and “I’ll see to it that this
stops.” Alarmed, Ana warned Raven in a school bathroom that Matthew
planned to hurt her. According to Raven, Ana also said Matthew had
texted, “I’ve got a gun. I know where she lives.” (Raven never saw the
texts, and they did not, in fact, refer to a gun or Raven’s home.)
¶6 Raven was understandably distressed and reported Ana’s
warning to school authorities. Vice principal Kimberly Heinz investigated
by speaking separately with Raven and Ana and then reviewing the text
messages. Because Matthew was not at school that day, Heinz did not
speak with him but planned to do so the next morning. Heinz thought the
texts were “very vague,” but both Ana and Raven stated Matthew might be
planning to hit or hurt Raven because he had done so previously. Heinz
also learned that Raven had dated Matthew, Ana was currently dating him,
and the girls had just discovered he was pitting them against each other.
Ana expressed worry only for Raven, not herself.
¶7 Considering Ana and Raven’s concern, Heinz asked for input
from school safety officer Kenneth Palmer, an off-duty City of Phoenix
Police Officer. Ana told Palmer she thought Matthew was “crazy,” but
she did not feel personally threatened by him. Raven repeated her belief
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DINSMOOR V. CITY OF PHOENIX, ET AL.
Opinion of the Court
that Matthew would harm her. Palmer concluded the texts were not
threatening.
¶8 Heinz implemented a safety plan for Raven, which included
informing Raven’s mother of the situation, switching Raven from her
classes with Matthew, having a security monitor walk her to the bus, and
verifying that someone would pick up Raven from her bus stop. Heinz
also informed principal Lynn Miller about the possible threat towards
Raven and the plan to protect her. Believing the only potential threat was
aimed at Raven, Heinz did not implement a safety plan for Ana.
¶9 March 7 was an early-release day. Heinz checked
attendance and discovered Matthew was not on campus, so she could not
speak with him as planned. Nonetheless, several students reported
rumors to Palmer that Matthew was on campus with a gun. Palmer
investigated but concluded the rumors were false. Matthew was absent
from all his classes, and Palmer could not locate anyone who had seen
Matthew that day. A security monitor searched the hallways and
restrooms but could not find Matthew. And immediately before school
recessed, Matthew’s mother informed Palmer that Matthew had stayed
home that day.
¶10 That same morning, Ana told Heinz that Matthew wanted to
meet with her after school. Ana said Matthew did not pose any threat to
her, and Heinz urged her to “make good choices.” Ana also told Palmer
she was going to a friend’s house after school to see Matthew. Palmer
warned her it “was not a good idea” but took no action. Ana went to her
friend’s house, where Matthew shot and killed her and then himself.
¶11 Ana’s mother, Diannah Dinsmoor, sued Heinz, Palmer,
Miller, the Deer Valley Unified School District, and the City of Phoenix,
alleging negligence-based claims. The trial court entered summary
judgment for all defendants, reasoning they did not owe a duty to protect
Ana under the circumstances. The court of appeals affirmed summary
judgment for the City but reversed as to the remaining defendants.
Dinsmoor v. City of Phoenix, 249 Ariz. 192, 201 ¶ 40 (App. 2020). The court
concluded that the District and its agents “owed Ana a duty based on the
special relationship between a school and its students.” Id. at 197 ¶ 23.
Because an issue of material fact existed whether Palmer was acting as an
agent of the District, the court determined he was also not entitled to
summary judgment. Id. at 201 ¶ 39.
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DINSMOOR V. CITY OF PHOENIX, ET AL.
Opinion of the Court
¶12 The District, Heinz, and Miller (collectively, “the District”)
petitioned for review. Palmer did not. We granted review to clarify the
duty owed by schools to their students, a recurring issue of statewide
importance.
DISCUSSION
I. Standard of review
¶13 We review the entry of summary judgment de novo, viewing
the facts in the light most favorable to the nonmoving party. Glazer v.
State, 237 Ariz. 160, 167 ¶¶ 28–29 (2015). Summary judgment is
appropriate when there are no genuine issues of material fact and the
moving party is entitled to judgment as a matter of law. Ariz. R. Civ. P.
56(a).
II. The school-student duty
A. General principles
¶14 To prevail on her claims, Dinsmoor must establish that the
District owed a duty to Ana to conform to a particular standard of conduct
to protect her against unreasonable risks of harm. See Gipson v. Kasey, 214
Ariz. 141, 143 ¶¶ 9–10 (2007). Duties are based on “special relationships”
or on relationships formed by public policy. See Quiroz v. ALCOA Inc., 243
Ariz. 560, 565 ¶ 14 (2018). Special relationships include those recognized
at common law and those formed by contracts, joint undertakings, and
family relationships. See id.; Stanley v. McCarver, 208 Ariz. 219, 221 ¶ 7
(2004). “The special relationship imposes a duty to avoid harm from ‘risks
created by the individual at risk as well as those created by a third party’s
conduct.’” Nunez v. Prof’l Transit Mgmt. of Tucson, Inc., 229 Ariz. 117, 121
¶ 17 (2012) (quoting Restatement (Third) of Torts: Liability for Physical
Harm § 40 cmt. g (Am. Law Inst. Proposed Final Draft No. 1 2007)).
Whether a duty exists is a legal issue we determine de novo. See Quiroz,
243 Ariz. at 564 ¶ 7.
¶15 The parties here agree that any duty owed by the District to
Ana is grounded on the common law special relationship between a
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DINSMOOR V. CITY OF PHOENIX, ET AL.
Opinion of the Court
primary or secondary school and its students. 1 See Jesik v. Maricopa Cnty.
Cmty. Coll. Dist., 125 Ariz. 543, 546 (1980) (recognizing this duty). People
do not generally have a duty to protect others from harm. See Quiroz, 243
Ariz. at 573–74 ¶¶ 62–63; Lips v. Scottsdale Healthcare Corp., 224 Ariz. 266,
269 ¶ 14 (2010). Nevertheless, the school-student relationship imposes an
affirmative duty on schools to protect students from unreasonable risks of
harm. See Hill v. Safford Unified Sch. Dist., 191 Ariz. 110, 112 (App. 1997)
(acknowledging that schools have a statutory and common law duty “not
to subject students within their charge” to “unreasonable risk[s] of harm
through acts, omissions, or school policy”); see also Jesik, 125 Ariz. at 546
(noting that a college has duties to make its premises reasonably safe and
to protect students from torts). The duty imposed recognizes that the
school “is a custodian of students, it is a land possessor who opens the
premises to a significant public population, and it acts partially in the place
of parents.” Restatement (Third) of Torts: Liability for Physical Harm § 40
cmt. l (Am. Law Inst. 2012).
¶16 The parties disagree whether the school-student duty is
limited by time and place considerations. The District argues the duty
exists only when a student is endangered while attending school during
school hours or participating in off-campus, school-sponsored activities.
Dinsmoor counters the duty exists regardless of where and when the
student suffers injury if the school learned of an unreasonable risk of harm
to the student while the school exercised custody and control over her.
¶17 Our view of the school-student duty falls between the parties’
positions. A school’s duty to its students is not limitless. See Monroe v.
Basis Sch., Inc., 234 Ariz. 155, 157 ¶ 6 (App. 2014). A duty based on special
relationships, including the school-student relationship, applies only to
“risks that arise within the scope of the relationship.” See Boisson v. Ariz.
Bd. of Regents, 236 Ariz. 619, 623 ¶ 10 (App. 2015) (quoting Restatement
§ 40(a) (2012)). Generally, the scope of such relationships is “bounded by
1 Schools may also owe duties grounded on statutes or bases other than
the school-student relationship. See Alhambra Sch. Dist. v. Superior Court,
165 Ariz. 38, 41–43 (1990) (holding that a school owed statutory and
common law duties to all persons using marked crosswalk that it
voluntarily established). Here, we address only the duty arising from the
special relationship between primary and secondary schools and their
students.
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DINSMOOR V. CITY OF PHOENIX, ET AL.
Opinion of the Court
geography and time.” See Restatement § 40 cmt. f (2012) (“The duty
imposed in this Section applies to dangers that arise within the confines of
the relationship and does not extend to other risks.”). Thus, in the school-
student relationship, the duty “encompass[es] risks such as those that occur
while the student is at school or otherwise under the school’s control.”
Monroe, 234 Ariz. at 157–58 ¶ 6 & n.2 (citing Restatement § 40(b)(5) and
cmts. f, l (2012)).
¶18 Monroe illustrates the confines of the school-student
relationship. There, the court of appeals held that a charter school did not
owe a duty of care to Jennifer, an eleven-year-old student who was struck
by a truck as she rode her bicycle home from school. Monroe, 234 Ariz. at
156 ¶¶ 1–2. The court reasoned that “[w]here a duty arises from a special
relationship, the duty is tied to expected activities within the relationship”
and in the school-student relationship, “the duty of care is bounded by
geography and time, encompassing risks such as those that occur while the
student is at school or otherwise under the school’s control.” Id. at 157–58
¶ 6 (citing Restatement § 40(b)(5) and cmts. f, l (2012)). Because Jennifer
had left the school’s custody when riding home, the school “did not have a
protective obligation and lacked the special, school-student relationship”
when the accident occurred. See id. at 158 ¶ 9. The court therefore
concluded that even though the school was near a busy intersection, it did
not owe Jennifer a duty of care to protect her traveling to and from school.
See id. at 158–59 ¶¶ 9–10; see also Pratt v. Robinson, 349 N.E.2d 849, 854 (N.Y.
1976) (“We see no basis, either in statutes or common law, for the creation
of a school’s duty to protect its students from hazards which may [beset]
them once they are on their way home and outside the control of the
school.”).
¶19 The court of appeals’ opinion in Hill conflicts with Monroe by
suggesting that the school-student duty is more expansive. The Hill court
held that a high school and a teacher were not liable as a matter of law for
student Clint’s death, which occurred when another student, Scott, shot
Clint after school and off-campus. 191 Ariz. at 111, 117. Clint and Scott
had argued earlier that day at school before an associate principal
intervened and sent the boys to class. See id. at 111–12. Clint’s mother
sued, citing circumstances from which the school and the teacher “knew or
should have known that [Scott] had dangerous propensities [and] it was
foreseeable that [Scott] would harm or cause injury to [Clint]” after the
argument that day. See id. at 111. Without analysis, the court agreed that
the school-student relationship imposed a duty on the school “to take
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DINSMOOR V. CITY OF PHOENIX, ET AL.
Opinion of the Court
reasonable precautions for [Clint’s] safety.” See id. at 112. But it
ultimately concluded the school had not breached that duty “[b]ecause
[Clint’s] death was not reasonably foreseeable and did not result from an
unreasonable risk created by the school or [the teacher].” Id. at 117.
¶20 We are persuaded by Monroe’s more limited view of the
school-student duty and reject Hill on that point. Because the school’s
roles forming the basis for the duty—custodian, land possessor, and quasi-
parental figure—apply when the school supervises and controls students
and their environment, enabling it to identify and eliminate risks, we are
convinced the duty to protect students exists only while the school is
fulfilling these roles. But once students safely leave the school’s control,
the special relationship ends, and students are simultaneously released to
their parents’ or guardians’ full custodial care. At that point, the school is
relieved of any duty to affirmatively protect students from any hazards
they encounter. Thus, in Hill, neither the school nor the teacher owed any
duty to protect Clint from Scott once the boys safely left the school’s control,
and to the extent Hill suggests otherwise, we disapprove it.
¶21 Other courts concur with our view. See, e.g., Pratt, 349
N.E.2d at 852 (reasoning that a school’s duty is “coextensive with and
concomitant to its physical custody of and control over the child,” and
when that child passes from “the orbit of its authority,” the school’s
custodial duty ceases); Norton v. Canandaigua City Sch. Dist., 624 N.Y.S.2d
695, 697, 699 (N.Y. App. Div. 1995) (concluding that “a school district’s duty
to a student, unlike a parent’s duty to a child, is strictly limited by time and
space” and whether a child should cross a street to await a school bus “is a
decision for a student or parent to make, not a school”); Davis v. Lutheran S.
High Sch. Ass’n of St. Louis, 200 S.W.3d 163, 168–69 (Mo. App. 2006)
(deciding school did not owe a duty to high school students killed while
driving to school softball game held during school hours because it lacked
authority and control over the students’ mode of travel); Young v. Salt Lake
City Sch. Dist., 52 P.3d 1230, 1233 (Utah 2002) (“[W]hen a school district
lacks custody, it has no protective obligation and no special relationship
exists.”).
¶22 We decline, however, to draw a bright-line rule barring
recognition of the school-student duty whenever the student suffers harm
while outside the school’s supervision and control, although that may
usually be the case. See Dan B. Dobbs, Paul T. Hayden & Ellen M. Bublick,
The Law of Torts § 418 (2d ed. 2011) (“Injury generated outside the school
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DINSMOOR V. CITY OF PHOENIX, ET AL.
Opinion of the Court
property, outside of curricular or extra-curricular activities, and from
sources unconnected to the school, is not likely to be the school’s
responsibility.”). Our courts have refused to draw such lines in cases
involving duties grounded in other special relationships, and no reason
appears why we should do so in the school-student context. See Stephens
v. Bashas’ Inc., 186 Ariz. 427, 430–31 (App. 1996) (concluding that a grocer
owed a duty to an invitee-driver injured while opening delivery truck doors
on adjacent public street because businesses have a duty to provide a
reasonably safe means of ingress and egress for invitees and the grocer
knew drivers used that area for parking and opening doors before backing
onto its property to deliver goods); Udy v. Calvary Corp., 162 Ariz. 7, 11
(App. 1989) (stating that a landlord owed a tenant-child a duty and the fact
the child was injured when he ran into a busy road next to the unfenced
premises was relevant only to whether the landlord breached the standard
of care).
¶23 Unique circumstances may exist where a school has a duty to
protect students from risks that arise while under school supervision and
control even though such risks result in harm when students are outside
school supervision and control. For example, in Warrington v. Tempe
Elementary School District No. 3, the court of appeals stated that a district
owed a duty of care to a seven-year-old student injured while walking
home from a bus stop located on a heavily travelled street. 187 Ariz. 249,
253 (App. 1996). The court reasoned that in deciding where to place bus
stops, the district had a duty not to subject students to an unreasonable risk
of harm. See id.; see also Garrett v. Grant Sch. Dist. No. 124, 487 N.E.2d 699,
703 (Ill. App. 1985) (to same effect). Similarly, a school’s duty to provide
a reasonably safe means of ingress and egress does not evaporate if a
student is injured off campus while trying to enter school property to attend
classes. See Stephens, 186 Ariz. at 430–31. And if a threat of harm exists
for students leaving school for the day—an active shooter in the
neighborhood or a tornado, for example—that risk arises within the school-
student relationship, thereby imposing a duty on the school to protect
students. See Perna v. Conejo Valley Unified Sch. Dist., 192 Cal. Rptr. 10, 11–
12 (Cal. Ct. App. 1983) (finding duty of on-premises supervision implicated
where teacher kept student after school until after a crossing guard had left
assigned intersection for the day and the student was injured there after
leaving school); Jerkins ex rel. Jerkins v. Anderson, 922 A.2d 1279, 1288 (N.J.
2007) (recognizing existence of duty to supervise elementary students
during dismissal in case involving nine-year-old student injured after he
left school without an adult on an early dismissal day).
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DINSMOOR V. CITY OF PHOENIX, ET AL.
Opinion of the Court
¶24 In sum, the school-student relationship creates a duty to
protect students from unreasonable risks of harm arising within the
confines of the relationship. See Boisson, 236 Ariz. at 623 ¶ 10; Restatement
§ 40(a) (2012). The key consideration is whether a known and tangible risk
of harm arose that endangered the student while under the school’s custody
and control. See Restatement § 40, cmt. l (2012). In such scenarios,
students are “deprived of the protection of their parents [or guardians],”
and the school has an affirmative duty to protect them from such risks until
they are safely released from the school’s custody and control. See id. § 40,
Reporters’ Note, cmt. l.
B. Application
¶25 Dinsmoor argues the District owed a duty to protect Ana
because she was under its custody and control when she told Heinz and
Palmer of her plans to meet with Matthew on the day of her death. The
court of appeals agreed, concluding “the District’s obligation to Ana arose
within the school-student relationship and required it to take appropriate
actions—here, actions it could have taken while Ana was on campus during
school hours—to protect her from the harm that ultimately occurred off
campus, after school.” Dinsmoor, 249 Ariz. at 198 ¶ 25.
¶26 Dinsmoor’s position is flawed by failing to consider whether
the known and tangible risk of harm to Ana—that Matthew would
physically hurt her—arose within the scope of the school-student
relationship, which would impose a duty on the District to protect Ana.
See Monroe, 234 Ariz. at 157–58 ¶ 6; Boisson, 236 Ariz. at 623 ¶ 10;
Restatement § 40, cmts. f, l (2012). A possible explanation for this omission
stems from Gipson’s admonition that the existence of duty “is a legal matter
to be determined before the case-specific facts are considered.” 214 Ariz. at
145 ¶ 21. But this language cautioned against considering the specific facts
of the parties’ relationship where a special relationship was absent. See id.
¶¶ 19, 21 (noting the absence of a special relationship and reasoning that
the parties’ relationship as co-workers, friends, etc. was “a problematic
basis for determining if a duty of care exists”). The Court similarly
warned against “equat[ing] the concept of ‘duty’ with . . . specific details of
conduct” as doing so would “conflate[] the issue with the concepts of
breach and causation.” Id. (quoting Coburn v. City of Tucson, 143 Ariz. 50,
52 (1984)).
¶27 We do not understand Gipson as meaning a court cannot
consider facts to determine whether a duty exists based on the presence of
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Opinion of the Court
an unreasonable risk of harm that arose within the scope of a special
relationship. Logically, a court cannot determine whether a duty arises
from such relationships unless it considers whether an unreasonable risk of
harm arose while, for example, persons were patronizing an inn, riding a
bus, or, here, attending school. See Restatement § 40(b) (2012) (listing
special relationships). Identifying the risk within the scope of the special
relationship does not touch on concepts of breach or causation, so there is
no danger of conflating duty with those elements. See Gipson, 214 Ariz. at
145 ¶ 21; see also Dabush v. Seacret Direct LLC, 250 Ariz. 264, 272 ¶¶ 33–35
(2021) (rejecting argument that court could not consider case-specific facts
to determine as a matter of law that a defendant had not assumed a duty to
plaintiff).
¶28 Nothing in the record suggests that Matthew posed a risk to
Ana before she safely left the District’s supervision and control on March 7.
Assuming Matthew’s text messages to Ana threatened harm, that threat
was aimed only at Raven. Ana herself told Heinz and Palmer that
Matthew did not pose a threat to her. Dinsmoor acknowledges that Ana
was not directly threatened but nevertheless argues a threat existed because
Matthew had previously been violent with Raven, and Ana and Matthew
had recently argued. We reject this argument because it effectively injects
foreseeability into the duty calculus, which this Court has repeatedly
cautioned against. See Quiroz, 243 Ariz. at 563 ¶ 2 (“[F]oreseeability is not
a factor in determining duty.”); Gipson, 214 Ariz. at 144 ¶ 15
(“[F]oreseeability is not a factor to be considered by courts when making
determinations of duty.”). Because no evidence suggests Matthew posed
a threat to Ana before she left school to meet him on March 7, a known and
tangible risk of harm did not arise within the scope of the school-student
relationship. The school consequently did not owe a duty to protect Ana
from Matthew, and the trial court therefore correctly entered summary
judgment for the District. Considering our holding, we do not address the
parties’ arguments concerning breach and causation.
CONCLUSION
¶29 This is a tragic case, and we empathize with Dinsmoor for her
great loss. Nevertheless, because the District did not owe a duty to Ana
based on the school-student relationship, we affirm summary judgment for
the District. We also vacate paragraphs 23–39 and the relevant portions of
paragraphs 40–41 of the court of appeals’ opinion.
11