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