Fair warning - this is a bad, bad joke
Three retired men are sitting in their rocking chairs on the porch of the old folks home.
The first old man says, "You know, I've got terrible prostate problems. I get up at 7:00 in the morning and it takes me at least 20 minutes to take a piss." The other two guys nod their heads in understanding.
The second old man then adds, "Well, that's nothing. I am so badly constipated that it takes me a hour every morning just to take a crap." The others nod, knowingly.
Then the third old guy says, "At 7:00 in the morning is piss like a racehorse and at 8:00 in the morning I ->-bleeped-<- like a pig!"
The two other guys look at each other and then ask, "What's wrong with that?"
The third guy says,"I don't get out of bed until 9:00."