A man is having problems with his dick which certainly had seen better times. He consults a doctor who, after a couple of tests, says, "Sorry, but you've overdone it the last 30 years. Your dick is burned out; you only have 30 erections left in your penis."
The man walks home (deeply depressed); his wife is waiting for him at the front door and asks him what the doctor said concerning his problem. He tells her what the doc told him. She says, "Oh no, only 30 times! We shouldn't waste that; we should make a list!" He replies, "Yes, I already made a list on the way home. Sorry, your name isn't on it."