“Three dog night” (attributed to Australian Aborigines) came about because on especially cold nights these nomadic people needed three dogs (dingos, actually) to keep from freezing.
Gilligan of Gilligan’s Island had a first name that was only used once, on the never-aired pilot show. His first name was Willy. The skipper’s real name on Gilligan’s Island is Jonas Grumby. It was mentioned once in the first episode on their radio’s newscast about the wreck.
In England, the Speaker of the House is not allowed to speak.
Ivory bar soap floating was a mistake. They had been over mixing the soap formula causing excess air bubbles that made it float. Customers wrote and told how much they loved that it floated, and it has floated ever since. (It floats in gasoline, too.)
Studies show that if a cat falls off the seventh floor of a building it has about thirty percent less chance of surviving than a cat that falls off the twentieth floor. It supposedly takes about eight floors for the cat to realize what is occurring, relax and correct itself.