The notion appears to be more or less prevalent that this so-called doctrine is a discovery of recent years, that it embodies a new legal principle, and that this principle is one which invades the domain formerly assigned to contributory negligence, and sets limitations upon the operation of this latter doctrine so long and so deeply imbedded in English and American jurisprudence. This is by no means true as respects either the age or the character and scope of the principle which it embodies. The names by which it has come to be known are indeed of recent origin, and perhaps its present vogue and the misconception which prevails as to its true place in the law of negligence are due in part to its thus being given an independent status in the terminology of the law. In fact, the principle is no modern discovery. It runs back to the famous “Donkey Case” of Davies v. Mann, 10 Mees. & W. 546, decided in 1842. It was distinctly recognized by this court in 1858 in Isbell v. New York & N. H. R. Co., 27 Conn. 393. It was then not only recognized, but its true place in the law was assigned to it. It was shown to be no independent principle operating by the side of, and possibly overstepping the bounds of, other principles, but merely a logical and inevitable corollary of the long accepted doctrine of actionable negligence as affected by contributory negligence. The definition of its place, which was made in the clear-cut language of Judge Ellsworth, inexorably forbade that it could by possibility run counter in its application to the contributory negligence rule. This fundamental principle we have steadily adhered to. Smith v. Connecticut Ry. & Ltg. Co., 80 Conn. 268, 270, 67 Atl. 888; Elliott v. New York, N. H. & H. R. Co., 83 Conn. 320, 322, 76 Atl. 298, 84 Conn. 444, 447, 80 Atl. 283.
There are, indeed, cases which give countenance to a different view upon this latter subject. But their dicta, oftentimes, not to say generally, uttered without an apparent comprehension of their logical consequence, would create havoc with the law, and leave it guideless, or with two conflicting guides. A sober second thought is, however, fast correcting this mistake, so that there has already come to be a general concurrence of the well-considered authorities in the view which has been taken in this jurisdiction.
The contributory negligence rule has no practical application save in cases where the defendant has been guilty of actionable negligence. It proceeds upon the theory that whenever a person injured has contributed essentially to his injury by his own negligent conduct, the law will not give him redress, even against another who may have been directly instrumental in producing the result. To furnish a basis for its application there must have been a concurrence of negligent conduct. This negligent conduct, furthermore, must have been of such a character and so related to the result as to entitle it to be considered an efficient or proximate cause of it. If there is a failure to use due care on the part of either party at such a time, in such a way or in such a relation to the result that it cannot fairly be regarded as an efficient or proximate cause, the law will take no note of it. Causa proxima, non remota, spectatur.
It thus logically follows that, although a plaintiff may have failed to exercise reasonable care in creating a condition, or in some other way, which cannot be fairly said to have been the proximate cause of the injuries of which he complains, the contributory negligence rule cannot be invoked against him. The question with respect to negligent conduct on the part of a person injured through the negligence of another, as affecting the former’s right to recover, thus becomes resolved in every case into one as to whether or not that conduct of his was a proximate cause of the injury. If it was, then the contributory negligence rule is applicable, and the plaintiff will by its operation be barred from recovery. If it was not, that rule has no pertinence to the situation, since there was no concurrence of negligence, without which there can be no contributory negligence in the legal sense. It is conduct of the latter kind—that is, conduct careless in itself, but not connected with the injury as a proximate cause of it—to which the so-called doctrine of “the last clear chance” relates, and that doctrine embraces within its purview such conduct only.
This being so, it may well be questioned whether the doctrine deserves a classification and a name as of an independent principle. But if, for convenience sake or other reason, it is to be dignified in that way, it is apparent that there is no manner of inconsistency between it and the contributory-negligence rule, and that the domain of the latter rule is in no way invaded or narrowed by a full recognition of it. It follows that the decisive question in each case, where a plaintiff injured is found to have been at fault in the premises from his failure to exercise the required degree of care, resolves itself into one as to whether that fault was or was not a proximate cause of the injury, and that the answer to that question will infallibly determine whether or not it will bar a recovery.
Thus far we have had the way marked out for us by the clearly defined doctrine of former opinions. But the proposition just stated, which is thus supported, while sufficient for the determination of many cases and furnishing a helpful guide in most others, does not resolve all the difficulties which may be encountered. It leaves the question open as to when negligent conduct in a person injured in his person or property is to be regarded as a proximate cause of the injury. How close must be the causal connection between the negligence and the injury? It is at this point that any real uncertainty or trouble arises under the doctrine of this jurisdiction.
The negligence referred to in the claimed rule is, of course, that which the law so denominates, to wit, want of due care which is a proximate cause of harm. The proposition is not dealing with a lack of due care which the law ignores. When it speaks of the negligence ceasing, negligence in the legal sense is meant. It may in a given sense cease in the sense that prudent conduct takes its place. It may for all legal purposes cease through the relegation of it, as events progress, to the domain of remote cause. In other words, it ceases when, and only when, the conditions of contributory negligence disappear. The claimed test thus solves no problems. It only brings one back, in doubtful cases, to the inquiry whether the plaintiff’s conduct, lacking in due care, was of such a character, or so related to the injury, that it ought to be regarded as a proximate cause of it, as the real test which must be applied.