The factual setting for the instant appeal is concisely set forth in our Brother’s separate opinion, and its repetition is avoided. The primary issue raised is whether a landlord is liable for the injuries of a tenant’s employee sustained upon the premises and caused by another tenant’s mental patient on convalescent leave status. We readily admit that our colleague’s thoughtful analysis is logically appealing, but the result is unacceptable. Conceding that the imposition of a duty *661upon defendant1 flows from policy considerations which are somewhat result-oriented, it is supported by sound legal principles and our understanding of developing case law. The secondary issues raised by defendant which require our consideration are whether the trial judge committed reversible error by admitting Donald Butzin’s probate court records and the testimony of his prior assault victim.
Disposition of the first issue requires a determination of. whether defendant owes a legal duty to the injured plaintiff. Since the relationship between the parties is tangential and the causation chain attenuated, we are placed squarely in the quagmire of foreseeability. Essentially, a duty is an obligation "recognized by the law, requiring the actor to conform to a certain standard of conduct, for the protection of others against unreasonable risks”.2 Professor William L. Prosser finds the interrelationship between negligence and risk as follows:
"Negligence is a matter of risk—that is to say, of recognizable danger of injury. It has been defined as 'conduct which involves an unreasonably great risk of causing damage,’ or, more fully, conduct 'which falls below the standard established by law for the protection of others against unreasonably great risk of harm.’ ”3 (Emphasis added.)
The emphasis is placed upon the unreasonable nature of the risk since all conduct involves some *662recognizable but remote risk to others and society does not require a person to guard against all such risks unless the circumstances justify the imposition of absolute liability.4
The inquiry becomes whether the risk is unreasonable under the specific circumstances with the societal value of the interest sought to be protected being the primary consideration.5 Prosser offers forseeability as the yardstick for measuring such reasonableness as follows:
"The idea of risk necessarily involves a recognizable danger, based upon some knowledge of the existing facts, and some reasonable belief that harm may follow. A risk is a danger which is apparent, or should be apparent, to one in the position of the actor.”6 (Emphasis added.)
Adoption of such a foreseeability test is found in May v Goulding, 365 Mich 143, 152-153 (1961). Cf. Johnston v Harris, 387 Mich 569 (1972). Although foreseeability is at best an elusive standard, suffice it to say that "[a]s the gravity of the possible harm increases, the apparent likelihood of its occurrence need be correspondingly less”.7
Since these fundamental concepts underlie the creation of landlord-tenant law, we seek their employment. Mere reference to a landlord’s duty to maintain safe premises fails to answer the inquiry and the abundance of case law for this proposition need not be cited. We justify imposing a duty upon defendant by balancing the societal *663interests involved, severity of the risk, burden upon defendant, likelihood of occurrence, and relationship between the parties.
The risk in the instant case is created by the mental patient’s propensity for violence while visiting defendant’s tenant, the Saginaw Valley Consultation Center, during convalescent leave. Defendant challenges the existence of its duty upon such facts, claiming that it possessed no actual knowledge that the patients on convalescent leave possessed a propensity for violence, had no means available to discover such knowledge, and had a right to rely upon the decision by the Michigan State Department of Public Health to place the patients on convalescent leave status.
A review of the record discloses the nature and extent of the knowledge possessed by defendant. Frederick Zingg, defendant’s leasing agent, and Arrol Irish, a principal stockholder, had actual knowledge that mental patients would visit the Saginaw Consultation Center daily for treatment. The record contains evidence that Mr. Zingg and Mr. Irish received a complaint from another tenant in the building which involved the poor dress of the mental patients. Although this event was offered as the single innocuous complaint received by defendant, the record discloses a further reference to the tenants’ concern. After repeated examination and cross-examination upon his deposition testimony, Mr. Zingg conceded that this complaint by femades working in the building concerned their fear and apprehension regarding the patients’ use of the stairs and elevators to reach the fourth floor where the center was located. These concerns should have at least placed defendant upon notice that a possible dangerous condition may exist. The common knowledge available to *664defendant’s officers and agents that assaults and homicides are committed by mental patients while on convalescent leave would have provided similar notice. Notwithstanding Mr. Irish’s successful relationship with a mental patient on leave status and knowledge of others, the incidence of assaults and homicides committed by mental patients with a history of violent conduct has been made vividly clear to the families involved and the public at large. These occasional unfortunate events constitute the realities of life. We do not attempt to undermine the rehabilitative effort sought for such patients, but simply recognize that experiences and events occur with sufficient frequency to create a real and not an imaginary danger.
Many patients are simply mentally deficient or retarded and present no unreasonable threat to the community in which they are released. Others possessing a propensity for violence, as evidenced by prior violent conduct toward others, may present a hazard. The fact that the consultation center would be treating mental patients and the fact that those patients with a propensity to be violent present a risk created sufficient knowledge to require defendant to inquire further to determine the type of patients that would visit its building with regularity. After evaluating the competing considerations, we do not find that such inquiry created an undue burden upon defendant. The present record indicates that defendant absolutely failed to make such further inquiry and this failure may well be sufficient to support a finding of negligence.8 Had defendant conducted such inquiry *665the risk would have become sufficiently foreseeable to reveal defendant’s duty to adequately protect the employees of other tenants on the premises.
The appropriate inquiry would have disclosed that the Saginaw Valley Consultation Center treated a variety of patients whose mental disorders range from deficiencies to serious and dangerous antisocial behavior. Mr. Eckes, director of the center, acknowledged receiving patients for consultation from the Ionia State Hospital. The mental disorders of such patients had resulted in criminal involvement encompassing violent conduct to others. Donald Butzin, who had been committed for stabbing another woman, was representative of a group of patients possessing such histories for violence.
The hazard created to defendant’s remaining tenants becomes apparent from an understanding of the nature of convalescent leave. The Hospital Act for Mentally Diseased Persons defines convalescent leave ás follows:
"The term 'convalescent status’ shall describe and include any patient who is not discharged, but who is permitted by the medical superintendent to live apart from the state hospital or state home under the special regulations of the medical superintendent.” MCLA 330.54; MSA 14.844. (Emphasis added.)
A reading of various sections of this statute makes clear the distinction between discharge and conva*666lescent status.9 A discharge represents a determination that a patient has recovered or been restored to sanity while convalescent status represents a trial or test of the patient’s reconciliation with society that precedes such determination. Since each of these procedures may be said to differ only in the degree to which the patient’s future conduct can be predicted, the risk to society during convalescent leave is sufficiently unreliable to justify different treatment. Mr. Eckes characterized the convalescent leave program as "a trial visit back to the community” in which the patient’s rehabilitation with society is attempted. This witness admitted that some patients for a variety of reasons failed this test and are returned to the hospitals for treatment.
The distinction between these procedures underscores the apparent risks involved. Defendant’s reliance upon the State of Michigan10 is misplaced since such trial status is neither the equivalent of a discharge nor concomitant with a cure. Defendant’s further investigation would have produced facts which belie such reliance and disclosed a foreseeable risk. Concededly, defendant could not have discovered Donald Butzin’s prior history of violent conduct for such records would most likely have been withheld as confidential. However, defendant could have discovered the nature of the *667convalescent leave program, risks involved, the general nature of the persons visiting the center, and their general propensity for violence.
Although our courts have not been previously confronted with this precise issue, we find that the developing case law in this area supports our imposition of a duty upon defendant. In Hersh v Kentfield Builders, Inc, 385 Mich 410 (1971), the Court held an employer negligent for failing to discover an employee’s propensity for violence. The Hersh Court cited the following principle from 34 ALR2d 390, § 9, as establishing a duty upon the employer:
"[A] duty imposed upon an employer who invites the general public to his premises, and whose employees are brought into contact with the members of such public in the course of the master’s business, is that of exercising reasonable care for the safety of his customers, patrons, or other invitees.” p 412. (Emphasis added.)
The defendant landlord similarly solicits tenants and their employees to occupy its premises for the purpose of producing a profit and should be reasonably responsible for their safety. Like the employer, a landlord is in a position to protect the employees of one tenant from the visiting patients of another by conducting the appropriate inquiry and taking the appropriate precautions. It is true that a landlord may be unable to discover each visiting patient’s individual propensity for violence like an employer investigating a prospective employee. However, such individualized inquiry by a landlord is not necessary, since the requisite knowledge necessary to establish a duty to maintain safe premises need not be particularized. The defendant landlord need only discover that pa*668tients with a propensity to commit violence would be attending the Saginaw Valley Consultation Center, not that Donald Butzin possessed such propensities. Such generalized knowledge was sufficient. to give defendant notice that safety precautions or indemnification was necessary.
More recently, the Court in Johnston v Harris, 387 Mich 569 (1972), held a landlord liable when a tenant was attacked and robbed in a poorly lighted, unlocked vestibule. The Johnston Court relied upon several sections of the Restatement of Torts, 2d, and concluded that the underlying element of defendant’s negligence was foreseeability. Based upon these sections, the Court accepted plaintiffs theory that:
"[I]n a high crime district it is reasonably foreseeable that inadequate lighting and unlocked doors would create conditions to which criminals would be attracted to carry out their nefarious deeds.” p 573.
This case indicates that the inadequate lighting and unlocked doors do not constitute the sole focus for determining liability; rather, the totality of the circumstances must be considered. Certainly, if foreseeability is tested upon the fact that the landlord rents space to a mental clinic, it is speculative and uncertain. However, if the additional factor that some of the visiting patients possessed a history of violence is considered, plaintiffs injury becomes reasonably foreseeable. We do not find defendant unreasonably burdened by a requirement that it inquire into the type of behavioral problems treated by the mental clinic requesting rental space. Since these patients were not discharged, but rather on convalescent status only, the societal risk and gravity of the potential inju*669ries were sufficiently great to diminish the quantum of foreseeability necessary.
Significantly, the Johnston Court cited Liberty National Life Insurance Co v Weldon, 267 Ala 171; 100 So 2d 696; 61 ALR2d 1346 (1957), for the proposition that:
"[W]hether the murder of an insured child by the beneficiary aunt was a reasonably foreseeable consequence of issuance of a policy to one who had no insurable interest was a jury question. ” p 575. (Emphasis added.)
Similarly, the Hersh Court stated that:
"Whether the employer knew or should have known of Hutchinson’s vicious propensities should not be determined by any court as a matter of law, but by the jury.”}) 415. (Emphasis added.)
We find these principles applicable to the present case. Whether the assault by a mental patient with a history of violence was a reasonably foreseeable consequence of defendant’s failure to discover that a tenant was treating mental patients with such histories and to take reasonable precautions therefor was a question for the jury.
We are not unaware of the vital policy considerations supporting the creation and maintenance of such consultation services. Neither do we invite their demise or encourage their rejection by this opinion. Upon discovering the foreseeable risk, defendant need not run afoul of these important policy considerations by refusing rental space to mental-health clinics. Defendant was in a position to protect the remaining tenants from the patients of a known tenant by establishing various safety precautions or seeking indemnity for resulting injuries. Since the gravity of the possible harm *670was great, the requisite foreseeability need be correspondingly less. Based upon the fundamental concepts of duty and foreseeability, we find that defendant had a duty to protect plaintiff from the injuries she sustained. The question of whether defendant violated its duty upon the facts presented was properly presented to the jury for disposition, and we sustain their judgment.
Defendant’s secondary issues challenging the admission of Donald Butzin’s probate record and the testimony of a prior assault victim are unavailing. Defendant initially objected to this type of evidence upon the grounds that it was irrelevant and immaterial, and that defendant possessed no knowledge of the prior assault. The relevancy and materiality of proffered evidence is determined by the trial judge within his sound discretion. MCLA 768.29; MSA 28.1052; People v Bunker, 22 Mich App 396 (1970). This evidence exhibited and verified the type of information that existed. Although Donald Butzin’s history was not specifically available to defendant, it demonstrated the fact that patients with a propensity for violence would visit the consultation center. The trial judge did not abuse his discretion by finding that such evidence was material and relevant as to defendant.
Defendant further predicates its challenge to the admitted probate records upon the physician-patient privilege11 and the teacher-pupil privilege.12 We find neither privilege applicable. Defendant Butzin, possessor of the privilege, expressed no desire to exercise his physician-patient privilege and defendant has no standing to request its exercise. Cf. Gaertner v Michigan, 385 Mich 49 (1971); People v Sam Williams, 39 Mich App 91 (1972). *671Since the testimony regarding defendant’s attempts to be readmitted to high school following the prior assault was the product of the witness’s personal knowledge and revealed no confidential communications, the teacher-pupil privilege was neither at issue nor violated. Anderson v Lavelle, 285 Mich 194 (1938). We find no error in the admission of the challenged evidence.
Since none of the issues raised disclose reversible error, the jury verdict is affirmed.
Affirmed. Costs to plaintiffs.
T. M. Burns, J., concurred.Since Donald Butzin did not appeal, further references to plaintiff's and defendant are to Mrs. Samson and Saginaw Professional Building, Inc., respectively, unless otherwise stated.
Prosser, Torts (3d ed), § 30, p 146.
Id., § 31, p 148. See, also, Clark v Dalman, 379 Mich 251, 261 (1967), where the Court described the common-law negligence as placing an obligation upon persons "to so govern [their] actions as to not unreasonably endanger the person or property of others”.
Current case law governing landlord-tenant relationships does not impose such absolute liability upon landlords. Kroll v Katz, 374 Mich 364, 373 (1965); Powers v Huizing, 9 Mich App 437, 441 (1968). We adopt this sound principle of law and limit the defendant’s duty to reasonably foreseeable consequences.
Prosser, Torts (3d ed), § 31, p 151.
Id., p 149.
Id., p 151.
The trial judge appropriately instructed the jury that:
“If you find that the Saginaw Professional Building, Inc., through its officers and agents, knowing that there was to be a mental health clinic within the building, did not make inquiry or adequate inquiry as to the type of patients who would be seen at the clinic, in order to *665determine if there would be any danger or potential danger to others from such persons, you may find that such failure on the part of the Saginaw Professional Building was negligence. ”
Based upon this instruction, the jury may have concluded that defendant was negligent for failing to conduct an adequate inquiry. Notwithstanding our ultimate conclusion that defendant owed a legal duty to plaintiff, defendant’s absolute failure to determine whether or not an unreasonable risk existed justifies the imposition of liability upon it.
See, e.g., MCLA 330.39; MSA 14.829, MCLA 330.39a; MSA 14.829(1), and MCLA 330.68; MSA 14.856, MCLA 330.69; MSA 14.857.
The Legislature has provided the State of Michigan with immunity for any injuries caused by mental patients paroled, discharged, or escaped from a mental institution. MCLA 330.38a; MSA 14.828(1). We question whether injuries committed by patients on convalescent leave fall within the purview of this immunity provision. If immunity does extend to convalescent status, we question the policy justifying the state’s immunity during such a trial period of the patients’ attempted reconciliation with society. This is not to say that the state must terminate such programs but merely fulfill its duty to society by accepting responsibility for an apparent risk rather than shifting the burden of loss to others.
MCLA 600.2157; MSA 27A.2157.
MCLA 600.2165; MSA 27A.2165.