The test used for factual causation|D poisoned his mother's milk|Not holding on to the reins was not the cause of death|Novus actus interveniens medical intervention|Soldier stabbed and then dropped twice|Need not be the only cause|V jumped out of car when d touched her|V collapsed when D chased her|V died after refusing to have hand amputated|V refused a blood transfusion|D used pregnant girlfriend as a shield