Whatever may be the true explanation of the rule applied to keeping tigers, or the principle of Rylands v. Fletcher, in the last cases we have entered the sphere of negligence, and, if we take a case lying somewhere between the two just stated, and add somewhat to the complexity of the circumstances, we shall find that both conduct and standard would probably be left without much discrimination to the jury, on the broad issue whether the defendant had acted as a prudent man would have done under the circumstances.
As to wrongs called malicious or intentional it is not necessary to mention the different classes a second time, and to find them a place in this series. As has been seen, they vary in the number of circumstances which must be known. Slander is conduct which is very generally at the risk of [159] the speaker, because, as charges of the kind with which it deals are manifestly detrimental, the questions which practically arise for the most part concern the defence of truth or privilege. Deceit requires more, but still simple facts. Statements do not threaten the harm in question unless they are made under such circumstances as to naturally lead to action, and are made on insufficient grounds.
It is not, however, without significance, that certain wrongs are described in language importing intent. The harm in such cases is most frequently done intentionally, if intent to cause a certain harm is shown, there need to prove knowledge of facts which made it that harm would follow. Moreover, it is often much easier to prove intent directly, than to prove the knowledge which would make it unnecessary.
The cases in which a man is treated as the responsible cause of a given harm, on the one hand, extend beyond those in which his conduct was chosen in actual contemplation of that result, and in which, therefore, he may be to have chosen to cause that harm; and, on the other hand, they do not extend to all instances where the damages would not have happened but for some remote election his part. Generally speaking, the choice will be found to have extended further than a simple act, and to co-ordinated acts into conduct. Very commonly it will have extended further still, to some external consequence. But generally, also, it will be found to have stopped short of the consequence complained of.
The question in each case is whether the actual choice, or, in other words, the actually contemplated result, was near enough to the remoter result complained of to throw the peril of it upon the actor.
[160] Many of the cases which have been put thus far are cases where the proximate cause of the loss was intended to be produced by the defendant. But it will be seen that the same result may be caused by a choice at different points. For instance, a man is sued for having caused his neighbor's house to burn down. The simplest case is, that he actually intended to burn it down. If so, the length of the chain of physical causes intervening is of no importance, and has no bearing on the case.
But the choice may have stopped one step farther back. The defendant may have intended to light a fire on his own land, and may not have intended to burn the house. Then the nature of the intervening and concomitant physical causes becomes of the highest importance. The question will be the degree of danger attending the contemplated (and therefore chosen) effect of the defendant's conduct under the circumstances known to him. If this was very plain and very great, as, for instance, if his conduct consisted in lighting stubble near a haystack close to the house, and if the manifest circumstances were that the house was of wood, the stubble very dry, and the wind in a dangerous quarter, the court would probably rule that he was liable. If the defendant lighted an ordinary fire in a fireplace in an adjoining house, having no knowledge that the fireplace was unsafely constructed, the court would probably rule that he was not liable. Midway, complicated and doubtful cases would go to the jury.
But the defendant may not even have intended to set the fire, and his conduct and intent may have been simply to fire a gun, or, remoter still, to walk across a room, in doing which he involuntarily upset a bottle of acid. So that cases may go to the jury by reason of the remoteness [161] of the choice in the series of events, as well as because of the complexity of the circumstances attending the act or conduct. The difference is, perhaps, rather dramatic than substantial.
But the philosophical analysis of every wrong begins by determining what the defendant has actually chosen, that is to say, what his voluntary act or conduct has been, and what consequences he has actually contemplated as flowing from them, and then goes on to determine what dangers attended either the conduct under the known circumstances, or its contemplated consequence under the contemplated circumstances.
Take a case like the glancing of Sir Walter Tyrrel's arrow. If an expert marksman contemplated that the arrow would hit a certain person, cadit qucoestio. If he contemplated that it would glance in the direction of another person, but contemplated no more than that, in order to judge of his liability we must go to the end of his fore-sight, and, assuming the foreseen event to happen, consider what the manifest danger was then. But if no such event was foreseen, the marksman must be judged by the circumstances known to him at the time of shooting.