A chemistry teacher wanted to teach his fifth-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 the worms closely,” said the teacher, putting a worm first into the water. The worm in the water writhed about, happy as a worm in water could be. The second worm, he put into the whiskey. It writhed painfully, and quickly sank to the bottom, dead as a door-nail.
“Now, what lesson can we derive from this experiment?” the teacher asked.
Little Johnny, who sits in the back, raised his hand and responded, “Drink whiskey and you won’t get worms?”