The tale of the four worms

A minister decided that a visual demonstration would add emphasis to
his Sunday sermon.
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 sermon, the Minister 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 Minister asked the congregation:
"What can you learn from this demonstration?"
A little old woman in the back quickly raised her hand and said:
"As long as you drink, smoke and eat chocolate ...you won't have worms!"