A doctor had been attending a rich old man for some time, but it became apparent that the old chap had not long to live.
Accordingly, the doctor advised his wealthy patient to put his affairs in order.
"Oh yes, I've done that," said the old gentleman.
"I've only got to make a will.
And do you know what I'm going to do with all my money?
I'm going to leave it to the doctor who saves my life."