A professor of chemistry wanted to teach his 5th grade class a
lesson about the evils of liquor, so he produced an experiment
that involved a glass of water, a glass of whiskey, and two
worms.
"Now, class. Observe closely the worms," said the professor
putting the worm first into the glass of water. The worm in the
water writhed about, happy as a worm in water could be.
The second worm, he put into the glass of whiskey. It writhed
painfully, and quickly sank to the bottom,
dead as a doornail.
"Now, what lesson can we derive from this experiment?" the
professor asked.
Johnny, who naturally sits in back, raised his hand and wisely,
responded, "Drink whiskey and you won't get worms."