A man is having problems with his dick which certainly had seen better times...
He consults a doctor which, after a couple of tests, says, "Sorry, but you've overdone it the last 30 years, your dick is burned out; you won't be able to make love more than 30 times!"
The man walks home (deeply depressed); his wife is already expecting him at the front door and asks him what the doctor said. He tells her what the doc told him.
She says: "Oh my god, only 30 times! We should not waste that; we should make a list!"
He replies, "Yes, Ii already made a list on the way home; sorry but your name is not on it!"