This ease was here at the last term, and is reported in 163 N. c., at p. 536. Nearly all of the questions now raised in this appeal were decided at,that time.
First. Plaintiff, for the purpose of exercising his right of challenge, was permitted to ask the.jurors, then in the box, over defendant’s objection, if any of them had any business connection or relation with the Fidelity and Casualty Company of New York, it having been admitted that defendant was insured by that company against loss on account of this claim to a certain amount. It seems to us that this objection is fully answered on two grounds in Norris v. Cotton Mills, 154 N. C., 474, in the language of Justice Allen: “The exception to the question asked the jurors, ‘Is there any member of the, jury who has an interest as agent, or otherwise, in the Maryland Casualty Company, an insurance company?’ is without merit. We must assume the question was asked in good faith, and the defendant says in its brief: ‘The Maryland Casualty Company had. insured the defendant in respect to the plaintiff’s accident.’ In. Blevins v. Cotton Mills, 150 N. C., 497, it was held that an employee of the defendant was incompetent as a juror, and the casualty company .was practically a defendant. In any event, it does not *390appear that tbe question prejudiced tbe cause of tbe defendant. No person was excused on account of bis connection with tbe casualty company, and tbe defendant did not exhaust its challenges.”
It does not appear in this case that any'juror was rejected because of bis interest or bias, or that defendant exhausted its peremptory challenges. If, under tbe circumstances, tbe question was calculated to prejudice tbe defendant before tbe jury, tbe court should have exercised its discretionary power so as to remove tbe prejudice and insure a fair trial. This must be left largely to tbe presiding judge, who has ample power to prevent any injustice to parties litigating before him, and tbe power should be used fully for this purpose, as we said recently in Hensley v. Furniture Co., 164.N. C., 148. "We will not revise bis rulings unless there is clear and unmistakable abuse. This is tbe principal exception in tbe case.
Tbe case of Akin v. Lee, 206 N. Y., 20, cited by appellant, is not applicable, as there tbe general question was asked, Is tbe defendant insured? without any particular motive or purpose, except to prejudice tbe defendant. Tbe Court in that case very properly said: “Such evidence, almost always, is quite unnecessary to tbe plaintiff’s case, and its effect cannot but be highly dangerous to tbe defendant’s; for it conveys tbe insidious suggestion to tbe jurors that tbe amount of their verdict for tbe plaintiff is immaterial to tbe defendant. It was a highly improper attempt on plaintiff’s part to inject a foreign element of fact into bis case, which might affect tbe juror’s minds, if in doubt upon tbe merits, by tbe consideration that tbe judgment would be paid by an insurance company. While frequently,, in tbe exercise of tbe authority conferred upon this Court, we disregard technical errors, when ifre see that they do not affect tbe merits of tbe controversy, tbe error committed in this case is of too grave 'a nature to be put aside as merely technical. In repeated instances, judgments have been reversed for its commission, and counsel must take notice that we shall adhere to our rule and that we shall order a new trial in all cases where, in such actions, a verdict may have been influenced by tbe con*391sideration of such unauthorized evidence.” The evidence was there admitted by the court, and served no apparent .purpose other than to influence the jury against the defendant and to prevent a fair and impartial hearing by them. Not so in this case, as we have seen, but quite the contrary.
Second. The testimony as to the reputation of- Milton Carden in the mill for carelessness and incompetency was fully considered before, and what was then said need not be repeated. “If the master becomes aware that the servant has become, for any reason, unfit for the service’ in which he has employed him, in such a sense as to endanger the safety of his other servants,' it will become his duty to discharge the unfit servant; and if, failing in this duty, one of his other servants is injured by the negligence of the unfit 'servant, he will have an action for damages against the master.” Thompson on Negligence, sec. 4050. “The hiring or retention of a servant whose unfitness for his duties, whether it arises from his want of skill, his physical and mental qualities, or his-bad habits, if known, actually or constructively, to 'the master, is culpable negligence, for which the master must respond in damages to any other servants who may suffer injury through that unfitness. The essential ground upon which the liability thus predicated is based is that The master impliedly contracts that he will use due care in engaging the services of those who are reasonably fit and competent for the performance of their respective duties in the common service.’ ” Labatt on M. and S. (2 Ed.), sec. 1079. It therefore makes no difference that Milton Garden, whose negligence caused the injury, was a fellow-servant -of the plaintiff, as the jury must have found that he was incompetent and that the master knew it before the plaintiff was hurt in the operation of the machine. Walters v. Lumber Co., 163 N. C., 541.
Third. The charge as to the assumption of risk was correct and in accordance with the law as we have often declared it, and also substantially in response to defendant’s own prayer. Plain- - tiff ’assumed the risk involved in the negligence of his fellow-servant, but not that arising out of the negligence of the master in selecting him, if he knew that he was incompetent, as the risk *392in that event would be caused by the master’s own negligence, as will appear by reference to the authorities above cited, and Orr v. Telephone Co., 132 N. C., 691; Pressly v. Yarn Mills, 138 N. C., 410; Norris v. Cotton Mills, 154 N. C., 485. We think this defense was properly submitted to the jury, so far as applicable under the pleadings'and evidence. Ammons v. Manufacturing Co., post, 449.
Fourth. The general character of Milton Carden, he not being a witness, was not in issue, and evidence in regard to it was properly excluded. McRae v. Lilly, 23 N. C., 118; Heilig v. Dumas, 65 N. C., 214; Clement v. Rogers, 95 N. C., 253; Norris v. Stewart, 105 N. C., 457; Marcom v. Adams,12,2 N. C., 225.
Fifth. The exception to that part of the charge relating to the measure of damages is untenable. The court charged according to the rule as' stated in Fry v. R. R., 159 N. C., 362, and recently in Johnson v. R. R., 163 N. C. 451.
Sixth. Upon the motion to nonsuit, which was refused, there was evidence' of defendant’s negligence, which should be construed most favorably for the plaintiff. It may be that the jury 'should have .found the other way, but we cannot say there was no evidence to support the verdict, nor do we mean to intimate that the verdict was not a correct one.
No error.