My Three Sons Season 11 Episode 12
Against his classmate’s better judgement, Ernie uses the unwitting Douglas household as guinea pigs for an experiment assigned by his psychology teacher. He cuts inches off Uncle Charley’s cane to make him think he is growing taller. Ernie soon finds his father Steve is a little less gullible.
Serie: My Three Sons
Episode Title: The Power of Suggestion
Air Date: 1970-12-12