The BEST episodes written by Richard Whorf
#1 - The Ghost Next Door
My Three Sons - Season 3 - Episode 6
Chip and his friend Sudsy see a Halloween spook carrying a candle in the neighbor's vacant house next door while out trick or treating, and are frightened out of their minds, but Steve and Bub will not believe them.
#2 - The Hippopotamus Foot
My Three Sons - Season 2 - Episode 35
Mike faces disciplinary action at the hands of the Board of Regents and the Dean of the College for a wayward fraternity prank in which several of the students have created a foot-print mould which bears a remarkable resemblance to the hippopotamus.