An older gentleman was on the operating table awaiting surgery and 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...."