A teacher in primary school wanted to show his pupils the damage alcohol causes to the human body. As an experiment he took two worms: one in a cup full of water the other in a cup full of alcohol.
The first worm swam happily as a worm in water could be.
The second worm swam painfully in the alcohol, til it died and sank to the bottom.
“So, what does this experiment show us?” asked the teacher.
Johnny who of course sits at the back of the class, raised his hand and said “drink alcohol, and you wont get worms!”