Moishe Rosenberg is on the operating table awaiting surgery. He has insisted that his son David, a renowned surgeon, perform the operation. Moishe is about to receive the anesthesia when he asks to speak to his son.
"Yes, Abba, what is it?"
"Don't be nervous, 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."