Puritan James is about to teach his growing-up son a thing or two about the evils of alcohol and drink
He places a glass of water and a glass of whiskey side by side on the dining table and he declares: "Now watch, Mike, what happens to the worms I will put in the glass of water and in the glass of whiskey; and tell me what you learn"
And Mike watches the worms curl up and die in the whiskey and Mike formalises his wisdom: *"Dad - I learn that if I drink whiskey I will never have worms!"