A watch is swung in front of your eyeballs, causing them to become swirly. The swirliness then travels up the pancreas and into the brain where it’s stored in the cooler until its cold. Soon, tiny hypnosis monkeys are released into the ganglia, and BINGO!, you, my friend, are hypnotized.

— Pig’s explanation, from “Hypno-a-Go-Go,” an episode of Back at the Barnyard