This was an action of trespass for assault and battery, originally commenced against George K. Kendall, the defendant, who died pending the suit, and his executrix was summoned in.

It appeared in evidence, on the trial, which was before Wells, C. J., in the Court of Common Pleas, that two dogs, belonging to the plaintiff and the defendant, respectively, were fighting in the presence of their masters; that the defendant took a stick about four feet long, and commenced beating the dogs in order to separate them; that the plaintiff was looking on, at the distance of about a rod, and that he advanced a step or two towards the dogs. In their struggle, the dogs approached the place where the plaintiff was standing. The defendant retreated backwards from before the dogs, striking them as he retreated; and as he approached the plaintiff, with his back towards him, in raising his stick over his shoulder, in order to strike the dogs, he accidentally hit the plaintiff in the eye, inflicting upon him a severe injury.

Whether it was necessary or proper for the defendant to interfere in the fight between the dogs; whether the interference, if called for was in a proper manner, and what degree of care was exercised by each party on the occasion; were the subject of controversy between the parties, upon all the evidence in the case, of which the foregoing is an outline.

The defendant requested the judge to instruct the jury, that “if both the plaintiff and defendant at the time of the blow were using ordinary care, or if at that time the defendant was using ordinary care and the plaintiff was not, or if at that time both plaintiff and defendant were not using ordinary care, then the plaintiff could not recover.”

The defendant further requested the judge to instruct the jury, that, “under the circumstances, if the plaintiff was using ordinary care and the defendant was not, the plaintiff could not recover, and that the burden of proof on all these propositions was on the plaintiff.”

The judge declined to give the instructions, as above requested, but left the case to the jury under the following instructions: “If the defendant, in beating the dogs, was doing a necessary act, or one which it was his duty under the circumstances of the case to do, and was doing it in a proper way; then he was not responsible in this action, provided he was using ordinary care at the time of the blow. If it was not a necessary act; if he was not in duty bound to attempt to part the dogs, but might with propriety interfere or not as he chose; the defendant was responsible for the consequences of the blow, unless it appeared that he was in the exercise of extraordinary care, so that the accident was inevitable, using the word inevitable not in a strict but a popular sense.”

“If, however, the plaintiff, when he met with the injury, was not in the exercise of ordinary care, he cannot recover, and this rule applies, whether the interference of the defendant in the fight of the dogs was necessary or not. If the jury believe, that it was the duty of the defendant to interfere, then the burden of proving negligence on the part of the defendant, and ordinary care on the part of the plaintiff, is on the plaintiff. If the jury believe, that the act of interference in the fight was unnecessary, then the burden of proving extraordinary care on the part of the defendant, or want of ordinary care on the part of the plaintiff, is on defendant.”

The jury under these instructions returned a verdict for the plaintiff; whereupon the defendant alleged exceptions.

Shaw, C. J. This is an action of trespass, vi et armis, brought by George Brown against George K. Kendall, for an assault and battery; and the original defendant having died pending the action, his executrix has been summoned in. The rule of the common law, by which this action would abate by the death of either party, is reversed in this Commonwealth by statute, which provides that actions of trespass for assault and battery shall survive. Rev. Sts. c. 93, § 7.

The facts set forth in the bill of exceptions preclude the supposition, that the blow, inflicted by the hand of the defendant upon the person of the plaintiff, was intentional. The whole case proceeds on the assumption, that the damage sustained by the plaintiff, from the stick held by the defendant, was inadvertent and unintentional; and the case involves the question how far, and under what qualifications, the party by whose unconscious act the damage was done is responsible for it. We use the term “unintentional” rather than involuntary, because in some of the cases, it is stated, that the act of holding and using a weapon or instrument, the movement of which is the immediate cause of hurt to another, is a voluntary act, although its particular effect in hitting and hurting another is not within the purpose or intention of the party doing the act.