A teacher decided to do a visual
demonstration in a class. Four worms were placed into four separate
jars. The first worm was put into a container of alcohol. The second
worm was put into a container of cigarette smoke. The third worm was
put into a container of chocolate syrup. The fourth worm was put into a
container of good clean soil. At the conclusion of the class, the
teacher reported the following results: "The first worm in alcohol -
dead. The second worm in cigarette smoke - dead. Third worm in
chocolate syrup - dead. Fourth worm in good clean soil - alive." So the
teacher asked the class: "What can you learn from this demonstration?"
A little Jim in the back quickly raised his hand and said, "As long as
you drink, smoke and eat chocolate, you won't have worms."