This is an action for wrongful death of Michael Tymkowicz, 10, a pupil at College Park Grammar School. Shortly before school, decedent was engaged in a game of “blackout,” played on the school grounds. In this “game,” one boy takes a deep breath and holds it, while another boy squeezes him tightly around the chest. The object is to render the first boy unconscious. On this occasion, the object apparently was partially attained. When *520 released from his companion’s grip, Michael fell and struck his head upon the school yard pavement, sustaining injuries which resulted in his death later the same day. Jury verdict was in favor of plaintiffs, the parents of the deceased boy. Defendant school district appeals. Its principal contention is that the evidence is insufficient to support the judgment.
Lack of supervision of pupils
(Forgnone
v.
Salvador Union Elementary Sch. Dist.,
There also was evidence from which the jury could conclude that the game was played for at least 10 minutes before the injury to Michael. Additionally, plaintiff
*521
father testified to an admission hy the school principal that he “knew that game was going on for quite a few years.” The jury could consider this testimony as evidence of the fact assertedly admitted
(Satariano
v.
Sleight,
The basic issue is whether defendant district exercised ordinary care. “The question is whether the school officials used the same care as persons of ordinary prudence . . . would use under the same circumstances”
(Bellman
v.
San Francisco High Sch. Dist.,
Appellant also attacks the sufficiency of the evidence to show that inadequate supervision was a proximate cause of the injury. But this question, too, is one of fact for the jury, and we cannot say that, as a matter of law, the evidence is insufficient to support the verdict in this respect
(Charonnat
v.
San Francisco Unified Sch. Dist.,
Appellant argues that the deceased child was, as a matter of law, guilty of contributory negligence or assumed the risk of the injury. But “knowledge that danger exists is not knowledge of the amount of danger necessary to charge a person with negligence in assuming the risk caused by such danger”
(Ridge
v.
Boulder Greek etc. Sch. Dist.,
*522
Appellant asserts error in the giving of an instruction, quoting from Education Code, section 13229, the language : “Every teacher in the public schools shall hold pupils to a strict account for their conduct ... on the playgrounds, or during recess.”
Sanson
v.
Reedley etc. Sch. Dist.,
Appellant assigns as error the giving of an instruction that “Mere lack of supervision or inadequate supervision may not necessarily create liability on the part of a School District to compensate for injuries sustained by a pupil; but when the failure, if any, to perform a duty such as the duty to be present to supervise the pupils’ conduct during the recreation periods may reasonably be expected to result in rough, rowdy and dangerous practices . . . the wrongful absence of a supervisor may constitute negligence.” It is asserted that there was no evidence of the absence of supervisors from the yard, and that this instruction therefore is irrelevant and is prejudicial in placing before the jury a fact not in evidence. We have already pointed out that there was substantial evidence from which the jury could find that there was no teacher in the yard at the time of the accident or for an appreciable period before it. Appellant also asserts error in the use of the word “wrongful” in the phrase “the wrongful absence of a supervisor may constitute *523 negligence.” But the adjective obviously was used to protect appellant. Rather than informing that mere absence of supervision is a basis of liability, the court limited liability to a case of wrongful absence. There is no prejudice to appellant.
Judgment affirmed.
Kaufman, P. J., and Dooling, J., concurred.
A petition for a rehearing was denied July 5, 1957.
