Little Johnny's science teacher wanted to teach his class a lesson about the evils of liquor, so he set up an experiment that involved a glass of water, a glass of whiskey, and two live worms.
"Pay attention, class. Observe what happens to each of the two worms," said the teacher putting the first worm in the glass of water. The worm in the water moved about unharmed, swimming happily.
He then dropped the second worm into the glass of whiskey. It writhed in agony for a few moments, and then sank to the bottom and died. "Now students, what facts can we derive from this experiment?" asked the teacher.
Little Johnny waved his hand vigorously and responded, "Drink whiskey and you won't have worms! "