In a school science class 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:

1) The first worm in alcohol – dead.

2) Second worm in cigarette smoke – dead.

3) Third worm in sperm – dead.

4) 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:

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“As long as you drink, smoke and have sex, you won’t have worms.”