Default standard of care
The test by which to determine the existence of negligence in a particular case may be stated as follows: Did the defendant in doing the alleged negligent act use that person would have used in the same situation? If not, then he is guilty of negligence. The law here in effect adopts the standard supposed to be supplied by the imaginary conduct of the discreet paterfamilias of the Roman law. The existence of negligence in a given case is not determined by reference to the personal judgment of the actor in the situation before him. The law considers what would be reckless, blameworthy, or negligent in the man of ordinary intelligence and prudence and determines liability by that. The question as to what would constitute the conduct of a prudent man in a given situation must of course be always determined in the light of human experience and in view of the facts involved in the particular case. Abstract speculations cannot here be of much value but this much can be profitably said: Rea