In a School science class four worms were placed into four separate jars.

In a School science class four worms were placed into four separate jars.

The first worm was put into a jar full of alcohol.
The second worm was put into a jar full of cigarette smoke.
The third worm was put into a jar full of sperm.
The fourth worm was put into a jar full of soil.

After one day, these were the results:

The first worm in alcohol - died.

The second worm in the cigarette smoke - died.

The third worm in the sperm - died.

The fourth worm in the soil - was 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."