This is an appeal by the plaintiff from a judgment for the defendants, following a jury verdict, in a personal injury action. The sole question on appeal is whether the trial court erred in giving an instruction on assumption of risk. The attack is made upon the propriety of the giving of the instruction and not upon the correctness of its content.
The Record
The'following facts are undisputed: Plaintiff, Hook, was injured when she fell while entering through a door in a fire station maintained by the defendant fire district. She was entering said premises for the purpose of voting in a bond election conducted by the defendant school district. The voting place was in a room adjoining the fire station through which the voters were required to pass in order to gain access to such room. A walkway approaching said door had a step up of 3 inches. The floor level inside the fire station was 9 inches *99 lower than the threshold. There were no signs posted warning of the 9-inch difference in level. At the entry door in question there was a sign with the words “Vote Here,” and below it an American flag. The plaintiff had never been in the fire station previous to this occasion.
There is a conflict with respect to the following facts: The plaintiff testified that the room she was entering from the outside, and in which she suffered the fall which is the basis of this action, was not lighted. The defendants adduced evidence that it was lighted. The plaintiff also testified that the door leading into the room in question was closed when she approached it and that she had to open it in order to enter. The defendants’ evidence indicated that the door was open. Witnesses produced by the defendants testified that the plaintiff was looking back over her shoulder talking to her husband as she went through the door. The plaintiff, on the other hand, stated that she was looking in the direction in which she was walking as she went through the door.
Each of the defendants pleaded the defense of assumption of risk in its answer.
Assumption of Risk
At the outset we must take cognizance of the rule that a party has a right to proper instructions on every material issue of fact upon which he relies, in accordance with the pleadings and proof, when there is substantial evidence to support his theory of the case.
(Stickel
v.
Durfee,
“The doctrine of assumption of risk is based on the theory that there has been a voluntary acceptance of a risk, and such acceptance, whether express or implied, requires knowledge and appreciation of the risk.”
(Hayes
v.
Richfield Oil Corp.,
It is now well established in California that the doctrine of assumption of risk has two requisite elements: (1) Knowledge and appreciation of the
danger
involved by the person in question; and (2) his voluntary acceptance of the risk.
(Gomes
v.
Byrne,
We now turn to the circumstances of the instant case. Our first consideration is the determination of what constituted the danger or the risk. The plaintiff says it is the fact that the threshold of the door was 9 inches above the floor level immediately inside the door. The defendants, on the other hand, assert that the danger was the risk incidental to the plaintiff’s not using her eyes, the risk inherent in entering a place of darkness, or, dependent upon the evidence which the jury chose to believe, the risk of walking with her head turned into a lighted but unfamiliar room. In essence the defendants argue that the plaintiff was not required to know the exact nature of the hazard she might encounter, but that the knowledge required by the doctrine consists of the awareness that some danger might be encountered if she didn’t use her eyes, or if she proceeded into unfamiliar darkness, or if she walked into a lighted room while looking back over her shoulder.
We are thus projected to the question as to whether the danger or risk contemplated by the doctrine of assumption of risk is a specific or particular one. In
Ziegler
v.
Santa Crus
*101
etc. School Dist.,
We are impressed by the rule announced in Guerrero and the support it finds in Prosser. This rule appear to us to be consistent with the theory of assumption of risk. It not only recognizes the element of knowledge, but it takes cognizance of the element of consent as a basis for the doctrine. Accordingly, we are persuaded that before one can consent to assume a risk he must have knowledge of the particular risk to which he is consenting. It is not enough, therefore, in order to urge the defense of assumption of risk, that one assume a risk of injury in the academic sense. The daily affairs of life are fraught with danger. The prospect of the risk of injury is inherent in the activities of human beings, whether in the home, at work, at play, or in transit. In the legal sense, however, assumption of risk presupposes that one has placed himself in a place of known danger with knowledge and appreciation of the risk. These conclusions find support, we believe, in the cases, some of which we shall now discuss.
In
Bee
v.
Tungstar Corp.,
Guerrero involved a situation where the plaintiff was struck by a falling log while he was helping to load a logging truck. It was there held to be prejudicial error to instruct on assumption of risk where there was no evidence that the plaintiff knew, or that he must have known, that the last log was likely to fall, that the log appeared to be in danger of rolling off the truck, or that anyone else engaged in loading the truck apprehended any danger from the log that fell.
The facts in
Hidden
v.
Malinoff,
The recent case of
Griffin
v.
Irelan,
Again, in the more recent case of
Garber
v.
Prudential Ins. Co.,
Hayes
involved an invitee situation where a woman fell at night into a grease pit on dimly lighted service station premises. The woman’s husband was regular a patron of the station and had taken his wife there on several occasions. The accident took place at 2:30 a.m. The couple had left their car parked in the station and were returning to it along the side of the station building where illumination was not good and objects could only vaguely be distinguished. The husband walked ahead of his wife, and in the darkness she fell into the grease pit. The wife testified she was not aware of the existence of the grease pit, and her husband stated he knew of its location but did not think of it prior to the accident. The refusal of the trial court to give an instruction on assumption of risk was upheld on the basis that the plaintiff wife did not have knowledge and appreciation of the risk. The court there stated the rule to be “that ‘before it can be said that one has “assumed the risk’’ of a
specified
hazard, it must be shown that he had knowledge of the condition creating the hazard.’ ’’ (
In Prescott, the plaintiff patron of defendant’s grocery store fell on the sidewalk near an entrance to the store. She noticed there was “ ‘a lot of water' ” on the sidewalk and that there was no dry area between the building and the curb through which she could walk. (P. 160.) Upon “ ‘very care
*104
fully’ ” taking three or four steps on the wet sidewalk, plaintiff slipped on something and fell. (P. 160.) An instruction on assumption of risk was held to have been improperly given because there was no evidence that the plaintiff had actual knowledge and appreciation of the danger. (
The ease of
Rogers
v.
Los Angeles Transit Lines,
By way of illustration of a voluntary exposure to a known specific hazard we have
Gomes,
where a salesman was bitten by a dog. A finding that the plaintiff assumed the risk of being bitten was sustained by evidence that, notwithstanding the dog’s display of hostility inside a wire fence with a closed gate, plaintiff elected to leave his place of safety on the public sidewalk outside the fence and to enter on the defendant’s closed property. (
We now turn to the factual situation in the present ease. The danger here is the 9-inch stepdown at the threshold. The first inquiry, then, is whether the plaintiff had actual knowledge of this danger or whether the facts were such that she must have knowledge of the hazard. The evidence is undisputed that the plaintiff had never before been to the fire station. The plaintiff testified that she was not aware of the stepdown. She testified it was dark and that she could not see the floor. There is no other evidence that the plaintiff saw the stepdown before she fell. The evidence presented by the defendants themselves that the plaintiff was looking behind her as she entered the building would negate knowledge of the 9-ineh drop. However, the plaintiff herself testified she was looking in the direction she was walking. This would be an evidentiary circumstance tending to show that she observed what was in the line of her vision. How
*105
ever, as staled in Guerrero: “It is not enough that the plaintiff should have been aware of that danger. There must be evidence sufficient to show that he was
actually
aware of it.” (
An important consideration in this case is the undisputed invitee status of the plaintiff. Insofar as an invitee is concerned, the general applicable principle is that an invitor must use reasonable care to keep his premises in a reasonably safe condition and give warning of latent or concealed peril.
(Florez
v.
Groom Development Co.,
It is apparent that the defendants confuse the defense of assumption of risk with that of contributory negli
*106
gence. Where it merely appears that the plaintiff should or could have discovered the danger by the exercise of ordinary care, the defense is contributory negligence and not assumption of risk.
(Prescott
v.
Ralphs Grocery Co., supra,
pp. 161-162.) The essence of defendants ’ argument is that if the plaintiff had exercised due care she would have known of the danger of the 9-inch stepdown and that therefore she assumed the risk of such hazard. Mrs. Hook may have been aware of the hazards of walking in the manner in which she did, and thus she may have been negligent in exposing herself to these hazards; but there is no evidence that she knew or must have known of the danger of the stepdown. The defense of assumption of risk presupposes the existence of danger and a risk attendant thereto. Therefore, assuming
argtiendo
that the stepdown constituted a dangerous condition, the defendants, as invitors, had the duty to remove such condition or to warn the plaintiff of its existence. Had the defendants performed their duty (plaintiff had a right to assume they would), plaintiff’s conduct in walking in the manner which she or the witnesses described was not necessarily a dangerous one. As stated by Mr. Justice Bray in
Johnston
v.
Orlando,
It was, therefore, error to grant the instruction on assumption of risk. The next inquiry, then, is whether the error was prejudicial. If it cannot be said that, in the absence of the error complained of, a different verdict would have been improbable, the error is prejudicial.
(People
v.
Newson,
Under the factual situation presented by the present case the jury might well find that there was no contributory negligence, yet find, under the questioned instructions, that the plaintiff, even though she was exercising due care, assumed the risks of injury. We cannot say, therefore, that in the absence of the instructions on assumption of risk, a different verdict would have been improbable. Accordingly, the giving of such instructions constitutes prejudicial error.
The judgment is reversed.
Bray, P. J., and Sullivan, J., concurred.
Respondents’ petition for a hearing by the Supreme Court was denied April 17, 1963.
