An older gentleman was on the operating table  awaiting surgery  and he insisted that his son,  a renowned surgeon,  perform the operation.  As he was about to get the anesthesia,  he asked to speak to his son.  "Yes, Dad , what is it?"  "Don't be nervous, son;  do your best,  and just remember,  if it doesn't go well,  if something happens to me,  your mother  is going to come and  live with you and your wife....."