But how about a duty of acquiring knowledge, owed to others for their safety, which, not being performed, will furnish a basis of liability? In Elliott v. New York, N. H. & H. R. Co., 83 Conn. 320, 76 Atl. 298, we recognized that such a duty might exist. That case involved the conduct of a locomotive engineer operating his engine at a grade-crossing, and we approved a charge which gave to the knowledge which the engineer, under the conditions, ought, in the use of due care, to have had, the same effect as actual knowledge. The duty imposed upon him was one to be watchful in order that needless harm might not come to persons who might be using the crossing, from the dangerous instrument of his calling. The duty was one toward others, which the circumstances and conditions must be regarded as fairly creating. For a like reason a similar duty rests upon other persons and under other conditions, in greater or lesser measure. Whether it exists, and the extent of it, depends upon the circumstances of each situation. A circumstance of chief significance, perhaps, is one which concerns the character of that about which the person is engaged in respect to its being calculated, under the conditions, to work injury to others. And so it is that a locomotive engineer, a motorman of a trolley-car running in a highway, or a chauffeur driving an automobile, is under a duty to be watchful for the protection of others which another man under other conditions would not owe to his fellows. Unreasonableness in one’s conduct, as a foundation for responsibility to others, cannot justly be established upon the basis of knowledge not possessed. It can with propriety be predicated upon negligence in not having acquired more knowledge. Negligence in this respect, as in all others, implies the existence of a duty to make use of means of knowledge. This duty must be found in the circumstances, and caution must be exercised in order that it, with its consequences, be not raised where the circumstances do not fairly impose it, or be extended beyond the limits which the circumstances fairly justify.[[210]]

George W. Wheeler, J. (dissenting). Just prior to the accident the defendant’s car was being negligently operated. Assuming the decedent walked either diagonally toward and upon the track, or close to it, without using his senses to learn of the approaching car, and that there was no excuse for his failure, he was negligent. If the accident occurred while decedent and defendant were negligent and decedent’s negligence was a proximate cause of the accident, and there was nothing more to the case, there could be no recovery. But if the defendant’s motorman saw, or could by the exercise of reasonable care have seen, the decedent either approaching the track and about to place himself in danger, or walking so near the track as to be in danger, apparently heedless and unconscious of his peril, he owed to the deceased the duty of warning him and of observing such precautions as might avoid running into him. This was the case before the jury. We hold knowledge and the means of knowledge of one having a duty to know equivalent. Elliott v. New York, N. H. & H. R. Co., 83 Conn. 320, 76 Atl. 298. This duty originated after the negligence of the motorman and of the deceased, and after the latter’s peril and his unconsciousness of it might have been discovered by the motorman. If its performance would have avoided the injury to the deceased, its breach was the proximate cause of the accident, and his negligence in placing himself in the place of peril a condition, or the remote cause, of it. Of course, if he had not gone upon the track he would not have been injured; if he was negligent in going upon the track without using his senses, that was not the proximate cause of the accident, but the failure of the defendant to avoid the accident after it had the opportunity of avoidance and after it knew of the decedent’s peril and his unconsciousness of it.

In each case of discovered peril caused by one’s negligence the question is, did the defendant have the opportunity after such discovery, and was it his duty, to have avoided the accident? Whether the conduct of the motorman was gross negligence, or ordinary negligence, the breach of duty was the same in kind, though differing in degree. If one walks upon a railway track drunk, or in a reverie, or otherwise careless; or if one stands or lies on or so near the railway track as to be in danger and unconscious of it; or if one is in a position of peril through his own negligence from which he is unable to extricate himself, the person knowing or having the means and the duty to know of his presence owes him the duty of avoiding injuring him. One who is negligently in a position of danger and unconscious of it is in no different situation than if he were incapable of extricating himself from his peril.

The few authorities which hold the antecedent negligence of the deceased in getting into peril is concurrent with the defendant’s negligence so as to bar a recovery, make meaningless the rule of duty compelling the defendant to use reasonable care to avoid the accident after discovery of the peril. A legal duty without a corresponding obligation is an anomaly. When we relieve the motorman of liability for failure to avoid an accident, he may operate his car at a negligent speed, without having it under control, without keeping an outlook, without giving warning of approach, and neither having nor using the ordinary instrumentalities of equipment for avoiding injury to travellers, and so long as his conduct is not gross negligence it carries with it no liability.

The opinion of the court classifies in five groups the several kinds of cases which have been thought to be within the “last clear chance” doctrine. In group one, the defendant, instead of doing his duty, does something which is a new act of negligence. In group two, the peril is one from which the plaintiff cannot, or cannot reasonably, extricate himself. Each group supports a recovery. In group three, means of escape were open to the plaintiff down to the accident, but he remained unconscious of his peril. The opinion holds that if the plaintiff remains passive after exposing himself to peril and does nothing to materially change that condition, there may be a recovery. But in group four, assuming the same facts as in group three, the court holds that if the plaintiff after exposing himself to peril, instead of permitting the fixed condition to remain unchanged continues as an active agent in producing the conditions under which the injury was received down to its occurrence, or until it was too late for the defendant to avoid the accident, there can be no recovery. In group five, the defendant knows, or ought to know, that the injured one is careless and is about to expose himself to danger of which he is unconscious, and after such knowledge has the opportunity to avoid injury to him, and in such case the court holds there can be no recovery.

We have attempted to show that the breach of duty of the defendant in each of these several groups is the same, and was a new act of negligence of the defendant, viz.: the failure of the defendant to avoid injuring the plaintiff after he knew of his peril when he was either unconscious of it or incapable of extricating himself from it, and that this breach was the proximate cause of the accident while the plaintiff’s prior negligence was the remote cause.

The distinction between active and passive negligence made in groups three and four, is new to our law, as well as to the law of negligence generally prevailing in this country and in England. On analysis it does not seem logical. A is crossing a trolley track when hailed by a friend; he stops upon the track to talk and negligently fails to use his senses to discover an approaching car. The motorman could have seen A in his place of peril, unconscious of his danger, and in time, with the exercise of reasonable care to have avoided injuring him; instead he drives on his car and kills A. The opinion would hold A negligent in being upon the track without using his senses to keep out of the way of the oncoming car, but that as he remained passive and did nothing to change his situation of peril after the motorman had the opportunity to have avoided the accident, he may recover. But if A, instead of stopping on the track had gone on his way across or upon the track and been struck, his negligence would have been active and continued to the accident and would have been concurrent with that of the motorman. It must be conceded that the breach of the motorman’s duty would have been the same in each case: a failure to use reasonable care to avoid the accident. We see no reason why it should be available in the one case and not in the other. In neither case has the plaintiff’s negligence changed. It never became passive or nonexistent. It remained to the time of the accident. It ceased, in a legal sense, to be a proximate cause of the accident. A was relieved of its consequences because the negligence of the motorman in failing to avoid the accident intervened and became its proximate cause. If this distinction holds, and A be upon a trolley track intoxicated and asleep, his negligence is passive; if awake and walking his negligence is active.[[211]]

GAHAGAN v. BOSTON & MAINE RAILROAD
Supreme Court, New Hampshire, December, 1900.
Reported in 70 New Hampshire Reports, 441.

Plaintiff was struck by a train while attempting to use a crossing provided by the Railroad Company for persons having business with a manufacturing company. From a point twenty-two feet from the nearest rails there was an unobstructed view of the track in the direction from which the train came. The accident happened near noon on a bright and clear day. Generally the engine bell was rung, while the whistle was sometimes sounded, for this crossing. Plaintiff knew it was usual to ring the bell. In this instance a danger whistle was sounded at, or immediately before, the time when plaintiff was struck; but there was evidence tending to prove that no other warning of the approach of the train was given. Plaintiff testified that he did not look or listen for an approaching train; and that he did not look because he expected to hear the bell or whistle if one was coming. The engineer testified that, when about one hundred and fifty to two hundred feet from the crossing, he saw plaintiff approaching the track; and that he kept watch of plaintiff until he got within a few feet of the track, when he whistled.[[212]]

A nonsuit was ordered, subject to exception.