Appellant brought an action on the case against appellee, alleging that he kept a ferocious and mischievous dog, knowing that he was accustomed to attack, chase and bite horses, etc.
In the first count the word “ horses ” alone is used. In the second the words “ horses as well as other domestic animals ” are used, and in the third count the words are “horses and teams attached to vehicles.” It is also alleged that appellant *535on May 25th, 1875, was going home from a debate at the school house one night, on horse-back, and that when passing along the road in front of appellee’s house, the said dog came out and bit his horse, and that thereupon the horse threw him and broke his leg. The verdict was in favor of appellee.
Basin and his son-in-law, Robert J ulian, lived opposite each other, and the two together had three dogs; appellee had a large black and white one and a little rat terrier, and Julian had a common yellow shepherd slut. All three were either principals or accessories in the attack—all joined in barking extensively. Appellant says however, that it was the large black and white one which bit his horse, and he is the only person who could tell how it was. It is not necessary to consider whether there can be joint liability of owners, for a joint attack of their dogs; as it is not so with cattle, it is probably not so with dogs. Westgate v. Carr, 43 Ill. 450.
We are not disposed to find any fault with the court below for allowing it to be proved whether the slut or the large black and white dog actually did do the biting, by showing which one was the more likely to liave done so, by proving which one’s daify habits of life were of a biting, and which of a mere barking character. If the difference of size and sex would raise any presumptions, it would seem proper to explain and rebut them in this way, as tending to show that appellant was mistaken.
The questions of fact are quite elaborately discussed, but we deem it only necessary to say on that subject, that if there were no erroneous ruling, a verdict either way should stand, unless one for plaintiff were for an excessive amount, and that in such case of conflict there should be reversal for error in instructions.
If the allegations in the declaration had been that appellee was the owner of the dog, instead of that he kept the dog, it would seem under the authority of Wormley v. Gregg, 65 Ill. 251, that the case for appellant would have been stronger. Before examining the instruction, we may say on the subject of dogs generally, that their rights are better protected now than they were in more barbarous times. In Smith v. Pelah, 2 Strange, 1264, the Chief Justice ruled that “if a dog has once bit a man, and the owner having notice thereof keeps the *536dog and lets him go about or lie at his door—an action will lie against him at the suit of a person who is bit, though it happened by such person’s treading on the dog’s toes, for it was owing to his hot hanging the dog on the first notice; and the safety of the king’s subjects ought not afterwards to be endangered.”
In Kightlinger v. Egan, 65 Ill. 235, Justice Sheldon, in a more just and humane spirit, ruled that a dog wantonly kicked, might lawfully bite in self-defense. The dog in this case, however, would not be justified, after his passions had had time to cool, in making the attack, simply because appellant may have two or three months before, unnecessarily struck at him with a whipstock while passing.
The second instruction given for appellee, was to the effect that unless the dog was accustomed to chase and bite horses and teams hitched to vehicles, there could be no recovery.
Under the first and second counts, there could be a recovery, though the dog was accustomed to attack horses, or other domestic animals not attached to vehicles, and always avoided doing so whenever they were so attached.
That a dog like men, may have idiosyneracies, is not only a well known fact, but it has the sanction of judicial authority. It is held in Kightlinger v. Egan, supra, that a “ dog might have been of savage and ferocious disposition as respected other animals, and yet of a different disposition toward persons.”
Why might not the dog have had the disposition to attack horses without riders, or one with a rider, and yet have refrained, from prudential motives, when there was an ally of the horse or horses, who could defend them from the fortified position of a two-horse wagon, or a buggy? If the dog had chased and bitten animals before, or shown a disposition to do so, and the keeper knew it, he must restrain him or take the consequences; see Stumps v. Kelly, 22 Ill., 140, where the law and the gospel on the subject are well considered by Justice Walker. It is not necessary that the inclination to do so should have become fixed and customary. If it be only on rare occasions, with the keepers knowledge, it is enough. It is not necessary to prove all that is alleged, but only enough to make a cause of action, under some one count.
*537We perceive no objection to the third of appellee’s given instructions. If the jury could not tell from the evidence whether it was Julian’s slut or appellee’s dog which caused the horse to throw his rider, they cannot say that appellee’s dog did it. •
The fourth improperly calls attention to particular portions of the evidence, for the consideration of the jury, viz.: whipping up the horse, striking at the dogs with a rope halter, and the skittislmess of the horse, giving them undue prominence. Frame v. Badger, 79 Ill. 441; Ogden v. Kirby, 79 Ill. 556; McCartney, v. McMullen, 38 Ill. 237; Evans v. George, 80 Ill. 51; Hatch v. Marsh, 71 Ill. 370. Though for this alone there might not be a reversal. Grube v. Nichols, 36 Ill. 92.
It is also said that a failure to exercise ordinary care in either one of these particulars, though it may not in any respect have tended to cause the fall from the horse, will prevent a recovery.
Appellant may not have struck at the dog with ordinary care, and yet this may not have had anything to do with causing the rider to be thrown. City of Centralia v. Scott, 59 Ill. 129. Of course, if the negligence, if any, of appellant, did not contribute to the fall, it is immaterial. C. & A. R. R. Co. v. Murray, 62 Ill. 326.
By the 6th, the jury are informed that they should entirely disregard the evidence of witnesses, who have been successfully impeached by direct contradiction, or proof of general character, except where corroborated by other competent evidence.
The jury have a right to believe a witness, notwithstanding they may think his character bad. The worst man and the greatest bar must be believed under some circumstances, and the court ought not to have said to the jury that they should not do so, instead of saying that they may do so or not, as they think best. Jurors, not judges, are to determine the weight to be given to evidence. Suppose there are but two witnesses, and they flatly contradict each other, may not the appearance and manner of testifying of the one, or the greater probability of his tale, turn the scale, and would a jury thus instructed consider such things as other competent evidence? Hor is it true that proof that a man’s character is bad would render it necessary *538for a jury, who did not desire to, to disregard his evidence entirely. ¡Men who are very bad in some other respects, may not be untruthful. Even though all the people in his neighborhood might swear that a witness’s character for truth was bad, and that they would not believe him on oath, this does not take away from the jury their right to believe him, and a court should not tell them that it did. It is not allowed in this State to prove that a witness’s general character is bad in ' order to impeach him, and consequently an instruction which says it does, is bad; it must be limited to character for truth and veracity. Other defects in the instruction are pointed out, but it is not necessary to pursue this subject further.
The modification of appellant’s 1st, -2nd, 4th and 10 th instructions was proper. We understand the law in this State to be that plaintiff must prove affirmatively that he exercised ordinary care, or the negative, that he was not negligent, whichever way it may be stated. Dyer v. Talcott, 16 Ill. 300; C. B. & Q. etc. v. Gregory, 58 Ill. 272, and not that each party must j>rove the opponent’s negligence—the plaintiff to entitle him to recover, and the defendant to prevent a recovery, as is held in some other States. Shearman & Bedfield on ¡Negligence, sections 43 and 44, and notes. This is an exception to a general rule, which allows that a necessary element of a plaintiff’s case need not be alleged, but requires that it must be proved. C. & N. W. R. R. Co. v. Cross, 73 Ill. 394. The Appellate Court of this district has held that an instruction is erroneous under the foregoing authorities and others, which states that “ if there is no proof of a want of care on the part of the plaintiff, it should he presumed that she was careful rather than that she was careless.” City of Mendota v. Fay, 1 Bradwell, 418. In the case of the C. B. & Q. R. R. Co. v. Van Patten, 74 Ill. on p. 94, it is, however, perhaps inaccurately intimated that where there is no evidence of what the intestate’s conduct was, plaintiff, who was administratrix, might recover upon proof of defendant’s negligence only. Inaccurate, because if such be a necessary element of plaintiff’s case, then under the maxim that “ what doth not appear doth not exist,” plaintiff fails to make a case; and not unlike this last case is that *539of Ill. Cent. R. R. Co. v. Cragin, Adm. 71 Ill. see the 7th instruction on p. 184.
Appellant’s 6th instruction, being on the measure of damages, and there not having been any to measure, it is unimportant whether it was correct or not. There was no error in the refusal of the seventh instruction asked by appellant, but we do not deem it necessary to comment on this, nor on the questions as to the supposed misconduct of the juror.
We select from appellant’s brief, the following cases, explanatory of the views taken in this opinion, as to the liability in such cases. Arnold v. Norton, 25 Conn. 92; Loomis v. Berry, 17 Wend. 496; Meibus v. Dodge, 38 Wis. 300; Wheeler v. Brant, 23 Barb. 324; Marsh v. Jones, 21 Vermont, 378; Rider v. White, 65 N. Y. 54; Laveroue v. Mangiante, 41 Cal. 138; Popwell v. Pierce, 10 Cush. 509; Sherfay v. Bartlett, 4 Sneed, 58; Shearman & Redfield on Negligence, section 190, and following sections: from which it will appear that it is not necessary to show that the keeper of the dog has allowed him to bite a very large number of his neighbors or their animals, before he commences to be liable, but that it is enough to show that there is, with his knowledge, a probability that he may do so. If lie have reasonable grounds to suppose that the dog may do so, he must restrain him, or take the consequences.
For the errors aforesaid, the judgment is reversed and the cause remanded.
Eeversed and remanded.