Little Johnny 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, little Johnny said, "I do it
because I can do it better than anybody, and I' very proud of that
fact."
The teacher says, "If I show you I can do it better than you, will
you stop."
Little Johnny agreed and the teacher placed two pieces of paper on
the floor with identical piles of chalk dust on each of them.
Johnny dropped his pants, squatted down, farted and blew all but a
tiny speck of dust off the paper.
The teacher dropped her panties, lifted her skirt, squatted down
and farted but when she was done, and there was not a trace of
chalk dust left on the paper. Johnny was astonished and asked if
she could see her do it again. She was willing and as she repeated
the process, Johnny peeked up underneath her skirt.
'No wonder you won!" he exclaimed, "You've got a
Double-barrel!"