There were seven dwarves in the tub, all feeling happy. ...So he got out.
Picture two dwarves standing in the forest, talking. One is fat and looks good-natured, the other is thin and nervous. The nervous one speaks:
"Well, it's down to just the eight of us now... I'm telling you, Hungry, something funny is going on around here!"
A guy goes to the doctor. "Doc," he says, "You gotta help me. I've got horrible flatulence. It's just a good thing they're silent and hardly smell at all, because I just can't control when I have to let one rip. I've let probably half a dozen fly just in the time I've been waiting for you!"
The doctor says, "I see. Here's a prescription; take two of these a day and come see me again in a week."
A week goes by, the guy takes the pills. He goes back to the doctor.
"Doc, what are you doing to me?!" he cries. "I'm still farting up a silent storm, only now they reek to high heaven!"
"Great!" says the doctor, "Now we'll check your ears."