The onus is upon the plaintiff to establish his case. The plaintiff was present at the trial, but did not give evidence. The facts proved are as consistent with (a) contributory negligence of the plaintiff, (b) voluntary acceptance of obvious risk by the plaintiff as with (c) negligence of Kettle causing the plaintiff's injuries. The principle of law which is applicable in such circumstances is established by the leading case of Wakelin v. London & Southwestern Railway Co. [1] : and see Mersey Docks & Harbour Board v. Procter [2] . In Wakelin's Case [3] the injured person was the husband of the plaintiff who sued for damages for negligence causing his death. Lord Halsbury L.C., after pointing out that it was incumbent upon the plaintiff to establish that her husband's death had been caused by some negligence of the defendants, so that if that fact were not proved the plaintiff failed, continued: "If the simple proposition with which I started is accurate, it is manifest that the plaintiff, who gives evidence of a state of facts which is equally consistent with the wrong of which she complains having been caused by - in this sense that it could not have occurred without - her husband's own negligence as by the negligence of the defendants, does not prove that it was caused by the defendants' negligence. She may indeed establish that the event has occurred through the joint negligence of both, but if that is the state of the evidence the plaintiff fails, because " in pari delicto potior est conditio defendentis ". It is true that the onus of proof may shift from time to time as matter of evidence, but still the question must ultimately arise whether the person who is bound to prove the affirmative of the issue, i.e., in this case the negligent act done, has discharged herself of that burden" [1] . In my opinion these observations apply to the present case. The plaintiff's case depends upon his affirmatively establishing the proposition that his injuries were caused by the negligence of the defendant Kettle. This conclusion, however, rests upon inference from all the proved facts, and the other inferences mentioned, namely contributory negligence on the part of the plaintiff and voluntary acceptance of an obvious risk, are equally consistent with those facts. Accordingly, it should be held that the plaintiff's claim has not been established. The appeal should be allowed and the judgment for the defendant should be restored.