A very obnoxious little boy kept disrupting his Third Grade class by
regularly letting loud farts. His teacher kept him after school.
When she insisted on knowing why he exhibited such offensive
behavior, he said, "I do it because I can do it better than anybody
and I'm very proud of that fact."
"If I show you I can do it better than you, will you stop?" asked
the teacher.
He agreed and the teacher placed two pieces of paper on the floor
with identical piles of chalk dust on each one. The kid dropped his
pants, squatted down, farted and blew all but a tiny little speck of
dust off the paper. The teacher dropped her panties, lifted her
skirt, squatted down and farted but when she was done, there wasn't a
trace of chalk dust left on the paper. The kid was astonished and
asked if he could see her do it again. She was willing and as she
repeated the process, the kid peeked up underneath her skirt.
"No wonder you won!" he exclaimed indignantly, "you've got a double-
barrel!"