A chemistry teacher wanted to teach

A chemistry teacher wanted to teach his fifth grade class a lesson about the evils of liquor,

so he performed an experiment that involved a glass of water, a glass of whiskey, and two worms.

“Now, class. Look carefully at the worms,” said the teacher, first putting a worm in the water.

The worm in the water writhed, happy as a worm in water could be.

He put the second worm in the wh***.

He writhed painfully and quickly sank to the bottom, dead as a doornail.

“Now, what lesson can we draw from this experiment?” the teacher asked.

Johnny, who naturally sits in the back, raised his hand and wisely replied, “Drink whiskey and you won’t get worms.”