The worm sermon

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,
"So, my friends? What did you learn from this demonstration?"
Maxine, sitting in the back, quickly raised her hand and said . . .
"As long as you drink, smoke and eat chocolate, you won't have worms!"