One seventy year old man says,"I have this problem, I wake up every morning at seven and it takes me twenty minutes to pee."
An eighty year old man says, "My case is worse. I get up at eight and I sit there and grunt and groan for half an hour before I finally have a bowel movement."
The ninety year old man says, "At seven I pee like a horse, at eight I crap like a cow."
"So what's your problem?" asked the others.
"I don't wake up until nine."