Garner Gregory, Beate Gregory, and Donna Mae Fields (the appellants) appeal the district court’s order granting summary judgment to the City of Rogers, Arkansas, and Officer Ronnie Howell (the ap-pellees) in this 42 U.S.C. § 1983 action. We affirm.
I.
We review the district court’s grant of summary judgment de novo. Gumersell v. Director, Fed. Emergency Management Agency, 950 F.2d 550, 553 (8th Cir.1991). Because this case comes to us on the appel-lees’ motion for summary judgment, the appellants’ evidence “[must] be believed, and all justifiable inferences [must] be drawn in [the appellants’] favor.” Anderson v. Liberty Lobby, Inc., 477 U.S. 242, 255, 106 S.Ct. 2505, 2513, 91 L.Ed.2d 202 (1986). Viewed in this light, the record reveals the following series of events leading to this lawsuit.
One weekend night in late March 1986, Joe Edwin Gregory, Donna Mae Fields, and Stanley Turner decided to visit several nightclubs together. Turner drove the three of them in Gregory’s car and served as Gregory and Fields’s “designated driver” for the evening. (Am.Compl. ¶ 11; Fields Dep. at 21.) After the nightclubs closed, Turner started to drive Gregory and Fields home. Officer Howell, a Rogers *1008policeman, stopped Turner for running a red light. Turner pulled into a local restaurant’s parking lot and got out of the car. Fields, fearing she and Gregory would be arrested for public intoxication, told Gregory to be quiet to avoid drawing attention to themselves. (Fields Dep. at 7, 25.) Despite Fields’s admonishment, Gregory got out of the car. Officer Marty Pollock, another Rogers policeman who was present, observed Gregory while he was outside the car. Gregory’s behavior, however, did not reveal his intoxication. According to Officer Pollock, Gregory was neither belligerent nor argumentative, he got back in the car when Officer Pollock asked him to do so, and Officer Pollock “did not notice anything peculiar about him.” (Pollock Dep. at 20-21.) Fields remained in the car and had no contact with either officer. Although Officer Howell walked up to the car, (Fields Dep. at 7), “[he] was not aware that the passengers in the [car] were intoxicated. They were not unruly. [He] observed no open containers [and] did [not] smell alcohol in the car or on their persons.” (Howell Aff. fl 9.) Likewise, although Fields stated she had several helium filled balloons in the car, at which she arid Gregory were batting “trying to keep them in the back” [of the car when] “they kept coming up over the back of the seat,” (Fields Dep. at 37), Officer Pollock could not recall seeing the balloons or hearing any noise coming from the Gregory car, (Pollock Dep. at 20).
Turner talked with Officer Howell while standing at the rear of Gregory’s car. During this discussion, Turner told Officer Howell that he, Gregory, and Fields were friends; they had decided “to go out and party” to take Gregory’s mind off his marital problems; and they had visited “some nightclubs.” Turner also told Officer Howell that Gregory and Fields “had been drinking” and he was “driving them home.” (Pollock Dep. at 19, 24.) Turner, however, did not tell Officer Howell that he was driving because Gregory and Fields were intoxicated. For his part, Turner was sober and fit to drive, and Gregory’s appearance outside the car did nothing to suggest his condition was any different. Although Fields has little memory about the evening, she does not recall that “she did anything or took any action that would cause a police officer to arrest [her].” (Fields Dep. at 21.)
Officer Howell requested a routine warrant check on Turner, which revealed an outstanding warrant for Turner’s arrest. Because the warrant was not of a serious nature, Officer Howell granted Turner’s request that he be allowed to drive to the Rogers police station to clear up the outstanding warrant. Gregory and Fields remained with Turner. Turner drove to the police station and parked on a city street in front of the station. As soon as Turner stopped in front of the station, Officer Pollock drove away and resumed his duties elsewhere. Officer Howell parked his patrol car in the police station’s parking lot behind the building. Turner left Gregory and Fields in the car and walked into the station where he met Officer Howell. (Howell Dep. at 23.) Howell did not ask Turner about Gregory and Fields, id., and Howell’s deposition does not show Turner said anything about Gregory and Fields or expressed any concern about them waiting in the car. It is undisputed that Gregory and Fields were never under Officer Howell’s control, taken into custody, or placed under arrest.
Approximately thirty minutes after Turner and Officer Howell met inside the station, “Gregory drove the car away from the police station.” (Am.Compl. 1117.) Unlike Turner, Gregory and Fields were quite intoxicated. Regrettably, Gregory and Fields were involved in a single car accident that killed Gregory and injured Fields. Tests later confirmed that Gregory and Fields each had blood-alcohol contents above the Arkansas legal limits for operating a motor vehicle. The record shows that after Gregory had driven off, but before the accident occurred, the police dispatcher sent out a radio bulletin alerting patrolling officers to be on the lookout for the Gregory car because “the driver was probably going to be intoxicated.” (Pollock Dep. at 33.) The record does not reveal how the dispatcher obtained this information, but *1009Officer Howell first learned Gregory and Fields had driven away after the accident had occurred. (Howell Dep. at 25.)
Fields, together with Gregory’s wife, son, and estate, brought this section 1983 action contending Officer Howell and the City of Rogers violated Gregory’s. and Fields’s Fourteenth Amendment substantive due process rights. According to the appellants, Officer Howell placed Gregory and Fields in danger by allowing them to remain in the car in front of the police station while waiting for Turner “in spite of their obviously intoxicated condition.” (Am.Compl. ¶¶ 15-16.) The district court, however, concluded the appellants’ claims sounded in negligence and, thus, were insufficient to state a claim under section 1983. Daniels v. Williams, 474 U.S. 327, 328, 106 S.Ct. 662, 663, 88 L.Ed.2d 662 (1986) (holding a government official’s negligent conduct will not support a substantive due process claim under section 1983); Davidson v. Cannon, 474 U.S. 344, 347-48, 106 S.Ct. 668, 670, 88 L.Ed.2d 677 (1986) (same). The district court granted the ap-pellees’ motion for summary judgment and dismissed the appellants’ lawsuit. The appellants appeal from this dismissal.
II.
To prevail under section 1983, the appellants must show that persons acting under color of state law deprived Gregory and Fields “of rights, privileges, or immunities secured by the Constitution or laws of the United States.” Parratt v. Taylor, 451 U.S. 527, 535, 101 S.Ct. 1908, 1913, 68 L.Ed.2d 420 (1981), overruled on other grounds, Daniels, 474 U.S. at 330-31, 106 S.Ct. at 664-65. The parties do not dispute that Officer Howell and the City of Rogers acted under color of state law. Thus, our threshold inquiry is whether Officer Howell and the City of Rogers deprived Gregory and Fields of a substantive right arising under the Fourteenth Amendment. Baker v. McCollan, 443 U.S. 137, 140, 99 S.Ct. 2689, 2692, 61 L.Ed.2d 433 (1979); Wells v. Walker, 852 F.2d 368, 370 (8th Cir.1988), cert. denied, 489 U.S. 1012, 109 S.Ct. 1121, 103 L.Ed.2d 184 (1989).
The Fourteenth Amendment Due Process Clause, like its Fifth Amendment counterpart, protects persons against abusive, arbitrary, or oppressive government conduct. See DeShaney v. Winnebago County Dep’t of Social Servs., 489 U.S. 189, 196, 109 S.Ct. 998, 1003, 103 L.Ed.2d 249 (1989); Daniels, 474 U.S. at 331, 106 S.Ct. at 665; Davidson, 474 U.S. at 348, 106 S.Ct. at 670. Many harms, though caused by a state actor, do not fall within the scope of section 1983, for section 1983 does not turn the Fourteenth Amendment into a font of tort law that supersedes the tort systems already available under individual state laws. See Estelle v. Gamble, 429 U.S. 97, 107, 97 S.Ct. 285, 292, 50 L.Ed.2d 251 (1976); Paul v. Davis, 424 U.S. 693, 701, 96 S.Ct. 1155, 1160, 47 L.Ed.2d 405 (1976). Indeed, “the [Fourteenth [A]mendment is not implicated by the lack of due care of an official causing unintended injury to life, liberty, or property.” Abernathy v. Perry, 869 F.2d 1146, 1148 (8th Cir.1989) (citing Daniels, 474 U.S. at 328, 106 S.Ct. at 663; Davidson, 474 U.S. at 347, 106 S.Ct. at 670). Thus, to survive a motion for summary judgment, the appellants must show the summary judgment record supports their claim that the appellees’ conduct rose to the level of a constitutional tort for which section 1983 provides a remedy.
The appellants contend Officer Howell violated Gregory’s and Fields’s substantive due process rights by failing to provide for their safety after he detained their designated driver. We disagree. In DeShaney, the Supreme Court explained that “nothing in the language of the Due Process Clause ... requires the [sjtate to protect the life, liberty, and property of its citizens against invasion by private actors.” DeShaney, 489 U.S. at 195, 109 S.Ct. at 1003. Although the Due Process Clause “forbids the [sjtate itself to deprive individuals of life, liberty, or property without ‘due process of law,’ ... its language cannot fairly be extended to impose an affirmative obligation on the [sjtate to ensure that those interests do not come to harm through other means.” Id. Only in limited *1010circumstances does the Constitution impose on the state an affirmative duty to protect or care for particular individuals, id. at 198, 109 S.Ct. at 1004-05, and those circumstances are not present in this case.
We have held the Due Process Clause imposes a duty on state actors to protect or care for citizens in two situations: first, in custodial and other settings in which the state has limited the individuals’ ability to care for themselves; and second, when the state affirmatively places a particular individual in a position of danger the individual would not otherwise have faced. Wells, 852 F.2d at 870; see also DeShaney, 489 U.S. at 195, 199-200, 109 S.Ct. at 1003, 1005; Freeman v. Ferguson, 911 F.2d 52, 55 (8th Cir.1990). The appellants do not contend that Officer Howell took Gregory and Fields into custody, exercised control over them, or had any special relationship with them. (Appellants’ Br. at 23-24; Appellants’ Reply Br. at 5, 9.) Nor do the appellants challenge Turner’s arrest or the legitimacy of his detention, even though it disrupted Gregory and Fields’s trip home, or suggest that Officer Howell was obligated to assume Turner’s role as Gregory and Fields’s designated driver and drive them home. Rather, the appellants contend that by allowing Gregory and Fields to remain unattended in Gregory’s car, Officer Howell “actively placed [them] in a situation of undeniable and certain danger” they would not otherwise have encountered. (Appellants’ Br. at 22-23; Am.Compl. ¶ 24.)
To establish their claim that Gregory and Fields had a substantive due process right to Officer Howell’s protective services, the appellants make two distinct contentions in their complaint. See Collins v. City of Harker Heights, — U.S. -, 112 S.Ct. 1061, 1068, 117 L.Ed.2d 261 (1992) (court must look to the complaint for a description of the constitutional right at stake). First, the appellants contend that Officer Howell “knew or should have known” Gregory and Fields were vulnerable because .of their intoxication and, thus, could not drive safely. (Am.Compl. ¶¶ 11, 14.) Second, the appellants contend that it was dangerous for Gregory and Fields to remain unattended in Gregory’s car while Turner was in the police station. (Am.Compl. ¶¶ 15-16, 24.)
To withstand the appellees’ motion for summary judgment, the appellants had the burden of presenting evidence sufficiently supporting the disputed material facts that a reasonable jury could return a verdict in their favor. Anderson, 477 U.S. at 248, 106 S.Ct. at 2510. The object of our review, then, is to determine whether the appellants submitted “sufficient probative evidence [that] would permit a finding in [their] favor on more than mere speculation, conjecture, or fantasy.” Barnes v. Arden Mayfair, Inc., 759 F.2d 676, 681 (9th Cir.1985). A mere scintilla of evidence is insufficient to avoid summary judgment. Anderson, 477 U.S. at 252, 106 S.Ct. at 2512. If the evidence the appellants put forward “is merely colorable,” or “is not significantly probative,” the appellees are entitled to summary judgment as a matter of law. Id. at 249-50, 106 S.Ct. at 2510-11. With these principles in mind, we consider the appellants’ contentions in turn.
Having considered the evidence supporting the appellants’ first contention, we conclude a reasonable trier of fact could not find Officer Howell “knew or should have known” Gregory and Fields were intoxicated and unfit to drive. During the sixteen minutes it took to stop Turner and discover the outstanding arrest warrant, nothing happened to alert Officer Howell or Officer Pollock to Gregory and Fields’s intoxicated condition. While standing at the rear of Gregory’s car, Turner briefly “explained to Officer Howell that he was ... driving [Gregory and Fields] home. He said that they had been drinking and they were all friends and that because Gregory had been having some marital problems ... they all decided to go out and party.” (Pollack Dep. at 24.) Turner also mentioned they had “attendfed] some night clubs in the area.” (Pollack Dep. at 19.) (The record contains no deposition or affidavit from Turner.) Although Turner probably knew of their intoxication, he did not tell Officer Howell that Gregory and Fields needed a designated driver because they *1011were intoxicated. Nor did Turner disclose what Gregory and Fields had been drinking, how much they had consumed, or when they took their last drink.
As given, Turner’s statements add up to nothing more than an explanation that the trio had gone out for an evening of entertainment and diversion, and Gregory and Fields had likely consumed alcohol. Turner’s words fall short of giving Officer Howell grounds to believe Gregory and Fields were intoxicated. Indeed, from Officer Howell’s perspective, the happenings surrounding the traffic stop presented nothing out of the ordinary — Turner was sober; the owner of the car, Gregory, appeared sober and coherent when he stepped outside the car; Gregory and Fields were not unruly and their conduct, if observed, was limited to keeping the floating balloons in the back of the car; Officer Howell noticed no odor of alcohol or beverage containers in view; and nothing Turner said suggested Gregory and Fields had consumed enough alcohol to reach the point of intoxication.
Given the absence of any detectable signs that Gregory and Fields were intoxicated, Turner’s statement that they had been drinking does not provide a sufficient basis on which a jury could reasonably draw the inference that Officer Howell was aware of their intoxication and unfitness to drive. See Mercer v. Armontrout, 864 F.2d 1429, 1436 (8th Cir.1988) (evidence that person has consumed alcohol does not establish intoxication); Miles v. Ryan, 484 F.2d 1255, 1258 n. 6 (3d Cir.1973) (same); Pendergrast v. United States, 416 F.2d 776, 778 n. 1, 785 n. 51 (D.C.Cir.) (evidence that two persons had consumed a pint of whiskey and two beers does not imply they were intoxicated), cert. denied, 395 U.S. 926, 89 S.Ct. 1782, 23 L.Ed.2d 243 (1969). An inference is a logical deduction reasonably drawn from facts established by evidence in the record. See Mitchell v. Machinery Ctr., Inc., 297 F.2d 883, 885 (10th Cir.1961). The appellants’ evidence, on the other hand, would allow the jury to draw nothing more than a mere supposition — a possibility or guess that a condition existed without a scintilla of proof that it did. See id. Based on the information available to Officer Howell, Gregory and Fields were nothing more than adult passengers, undoubtedly inconvenienced by Turner’s arrest, who were at liberty to make their own arrangements if they did not want to wait for Turner. The appellants have thus failed to submit sufficient evidence to support the first contention on which they base their section 1983 claim.
Having failed to submit sufficient evidence to withstand summary judgment on their first essential contention, the appellants cannot prevail. Nevertheless, we also conclude that even if Officer Howell knew Gregory and Fields were intoxicated, a reasonable trier of fact could not find that Officer Howell affirmatively placed Gregory and Fields in danger when “Gregory and Fields were left in the car” at the police station. (Am.Comp. ¶ 15.) Officer Howell did not leave Gregory and Fields stranded at the place of Turner’s arrest or in a dangerous area. See Wood v. Ostrander, 879 F.2d 583 (9th Cir.1989), cert. denied, — U.S. -, 111 S.Ct. 341, 112 L.Ed.2d 305 (1990) (trooper knowingly left arrested driver’s female passenger stranded in a high-crime area during inclement weather); White v. Rockford, 592 F.2d 381 (7th Cir.1979) (police officers stranded young children on Chicago expressway during inclement weather). Nor did Officer Howell interfere with Gregory and Fields’s decision to remain in the car with Turner— the person they had selected to serve as their “designated driver” and whom they characterize as their “caretaker.” (Appellant’s Br. at 22.) Instead, Officer Howell permitted Turner to drive the car to the police station, where Turner chose to park on a city street in front of the station.
In carrying out Turner’s arrest in this manner, Officer Howell gave Turner a free hand to make suitable arrangements for his passengers before he joined Officer Howell in the police station. Although Turner’s arrest delayed him from immediately driving Gregory and Fields home, Turner was clearly in a position to perform his caretaker role. After all, Turner was alone in the car with Gregory and Fields in front of a police station, he was under no *1012pressure to rush into the station, he knew Gregory and Fields had not been taken into custody, and of all people, he knew the true extent of their drinking. If Gregory and Fields were too intoxicated to care for themselves or be left alone, Turner could have brought them inside the police station, made phone calls to other friends to take Gregory and Fields home (Turner was seated inside the police station; he was not placed in a cell), or informed Officer Howell that Gregory and Fields could not safely be left unsupervised. The record does not show that Turner took any of these actions; instead, he placed Gregory and Fields in danger when he failed to remove the keys from the car before he entered the police station. (Nothing in the complaint or record suggests Gregory had a second set of keys.) Tragically, all Turner had to do to protect Gregory and Fields from harm was retain those keys, which would have ensured Gregory could not drive away while intoxicated. Simply put, it was not unsafe for the intoxicated Gregory and Fields to wait for Turner inside the car where it was parked until Turner inexplicably left the keys with them. Certainly, Officer Howell could not foresee Turner abdicating his responsibility as their designated driver, and it was his abdication that placed Gregory and Fields in danger, not Officer Howell’s performance of his official duty.
Nevertheless, the appellants assert that Officer Howell should have “taken [Gregory and Fields] inside the police station” and should have “remov[ed] the keys from the [ear].” (Am.Compl. ¶¶ 15, 16.) These assertions amount to nothing more than a transparent effort to circumvent the general rule that Gregory and Fields had “no constitutional right to be protected by [Officer Howell] against harm inflicted by [Turner].” Wells, 852 F.2d at 370; Deskaney, 489 U.S. at 195-96, 109 S.Ct. at 1003. Truly, the appellants’ case is bottomed on the flawed premise that Officer Howell endangered Gregory and Fields by leaving them in the company of their own designated driver.
Given the record in this case, a reasonable trier of fact could not conclude that Officer Howell “affirmatively place[d] [Gregory and Fields] in a position of danger.” Wells, 852 F.2d at 370. Instead, the appellants have failed to present a triable issue on their claim that Gregory and Fields “possessed a right arising under the [Fourteenth [A]mendment to be protected by [Officer Howell] from harm inflicted by a third party.” Id. There being no deprivation of a protected right, we need not consider whether the district court properly characterized the appellants’ complaint as stating nothing more than a mere negligence claim, see Baker, 443 U.S. at 140 & n. 1, 99 S.Ct. at 2692 & n. 1; see also Daniels, 474 U.S. at 328, 106 S.Ct. at 663, or what greater standard of care is necessary to state a substantive due process claim under section 1983, see Myers v. Morris, 810 F.2d 1437, 1468-69 (8th Cir.1987) (holding gross negligence does not implicate the due process clause).
III.
The appellants base their claim against the City of Rogers on theories that Officer Howell’s conduct resulted from inadequate training and from following municipal policy or custom. Having concluded Officer Howell did not violate Fields’s and Gregory’s constitutional rights, the appellants cannot press a claim against the City of Rogers on either theory. Reynolds v. City of Little Rock, 893 F.2d 1004, 1007 (8th Cir.1990) (quoting City of Los Angeles v. Heller, 475 U.S. 796, 799, 106 S.Ct. 1571, 1573, 89 L.Ed.2d 806 (1986) (per curiam)); see also Tempkin v. Frederick County Comm’rs, 945 F.2d 716, 724 (4th Cir.1991).
We affirm the district court.