Three elderly men are talking about their aches, pains and bodily functions. The seventy-year old man says, "I have this problem. I wake up every morning at seven and it takes me twenty minutes to tinkle."

The 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 BM."

The ninety-year old says, "At seven I pee like a horse, at eight I flop like a cow."

"So what's your problem?" ask the others.

"I don't wake up until nine."