The Simpsons: Every Sideshow Bob Episode Ranked Worst To Best

15. The Man Who Grew Too Much (Season 25, Episode 13)

The worst Sideshow Bob episode is a fairly standard affair on paper, following the former clown as he reunites with Bart and Lisa and reveals he's been experimenting with his DNA, making himself superhumanly strong.

The Man Who Grew Too Much has its virtues, including Kelsey Grammer's typically delightful voice work and a surprise partnership between Bob and Lisa, two geniuses brought together by science, but it also reeks of tired repetition.

Featuring a scene in which Bob's stalled by a request to sing and then changes his mind about his evil plans, the episode's derivative ending and tacked-on sci-fi tropes leaves it feeling decidedly lazy.

The episode's worst offence, though, belongs to its tediously unfunny subplot, in which Marge gives a sex ed talk to a group teenagers and makes them promise to remain abstinent until marriage. It makes the Bob stuff look like a masterpiece.