List of things in kids' movies...
that miraculously didn't cause PG-13 or maybe even R ratings (and that's not to say I don't like these movies, I love them except for one, you'll know it when you see it, but still):
Willy Wonka and the Chocolate Factory: A tunnel scene that features a chicken getting its head cut off and a millipede crawling across a corpse's face.
Return to Oz: An evil queen keeping a collection of interchangeable heads.
The Secret of NIMH: Some very intense and sometimes bloody violence.
E.T.: Elliot saying, "It was nothing like that, penis breath!" (although, every time I hear that one, I laugh loudly)
Scooby Doo: Fred in Daphne's body saying, "I can look at myself naked."
MouseHunt: A very disturbing scene involving a cockroach in a restaurant.
Big-Top Pee-Wee: Pee-Wee cheating on his fiancee with a circus woman.
The Road to El Dorado: The implication of Chel giving Tulio oral sex.
Shrek: A little movement under Lord Farquaad's blanket.
The Neverending Story: A horse drowning in a swamp.
Ice Age Dawn of the Dinosaurs: Buck was about to tell a story of how he "turned a T-Rex into a T-Rachel".
Foodfight: Countless sexual innuendos.
And you're all getting bent out of shape over five seconds of rabbits doing harmless butt shaking with nothing sexual said or implied.