"19. As a rule, mere proof that an event has happened or an accident has occurred, the cause of which is unknown, is not evidence of negligence. But the peculiar circumstances constituting the event or accident, in a particular case, may themselves proclaim in concordant, clear and unambiguous voices the negligence of somebody as the cause of the event or accident. It is to such cases that the maxim res ipsa loquitur may apply, if the cause of the accident is unknown and no reasonable explanation as to the cause is coming forth from the defendant. To emphasise the point, it may be reiterated, that in such cases, the event or accident must be of a kind which does not happen in the ordinary course of things if those who have the management and control use due care. But, according to some decisions, satisfaction of this condition alone is not sufficient for res ipsa to come into play and it has to be further satisfied that the event which caused the accident was within the defendant's control. The reason for this second requirement is that where the defendant has control of the thing caused the injury, he is in a better position than the plaintiff to explain how the accident occurred. Instances of such special kind of accidents which "tell their own story" of being off-springs of negligence, are furnished by cases, such as where a motor vehicle mounts or projects over a pavement and hurts somebody there or travelling in the vehicle; one car ramming another from behind, or even a head-oncollision on the wrong side of the road. See per Lord Normand in Barkway v. South Wales Transport Co.(1); Cream v. Smith(2) and Richlev v. Fanll(3).
