You know the doors inside restrooms that either aren't labeled or say "Authorized Personnel Only"? Well, I used to think that if I opened that door, a gorilla would be hiding behind the door, and it would jump out and scare me. Why a gorilla of all things, I will never know. I guess it was just my crazy imagination.
A childhood belief about fear of

others believed things like this
- I used to think that if a gorilla pounded its chest it liked you.Anon
- I thought a Monkey was just a baby Gorilla and when they grew up their Tails fell off!— Brainhead
- For the longest time I used to believe that "Dracula" was a gigantic gorilla with fangs, not unlike King Kong.— Mark Cidade
- I used to think that you could get a tan if you turned the oven on, opened the door and stood in front of it.Anon
- I was convinced that Gorilla soldiers in Vietnam in the 70's were real Gorillas attacking other Soldiers.— Mario
- that Guerilla Warfare was called "Gorilla Warfare" and it's about fighting gorillasAnon