As a general remark, the statement "If A had done X then Y would not have happened." is not sufficient to prove that A's doing X is responsible for Y. Various c

As a general remark, the statement "If A had done X then Y would not have happened." is not sufficient to prove that A's doing X is responsible for Y. Various counterexamples: - If the murderer's mother had refused to have sex with the murderer's father, the victim would be alive today. - If the train driver had had a sudden impulse to stop his train, the suicide could not have taken place. - If he had subscribed to the protection racket scheme, his family would not have been harmed. Responsibility is finer than causality.