Bowel Movements

An old man goes to see the doctor. "it's about my bowel movements..." says the old man. "Are they loose?" asks the doctor. "No" says the old man. "Are you constipated then?" asks the doctor. "No" says the old man, "Regular as clockwork, that's me!" he continues. "You can set your watch by it....eight o'clock every morning without fail." "So what's the problem?" asks the doctor. "I don't wake up till nine!"