Eskimosjokes

Little Johnny watched the science teacher start the experiment with the worms.
Four worms were placed into four separate jars.
-The first worm was put into a jar of alcohol.
-The second worm was put into a jar of cigarette smoke.
-The third worm was put into a jar of sperm.
-The fourth worm was put into a jar of soil.
After one day, these were the results:
-The first worm in alcohol - dead.
-Second worm in cigarette smoke - dead.
-Third worm in sperm - dead.
-Fourth worm in soil - alive.
So the Science teacher asked the class - "What can you learn from
this experiment."
Little Johnny quickly raised his hand and said
"As long as you drink, smoke and have sex, you won't have worms.