When I was young, in the early sixties, I used to believe that snakes lived in the outhouse at my aunt's house. I even had the heebie jeebies if I thought about it while sitting on a flush toilet since I had lived in Florida when I was 6-8 and had heard the alligator in the sewer stories. I never could quite convince myself they weren't true.
A childhood belief about fear of

others believed things like this
- When i was small i used to think god lived on top of my house and the devil lived right underneath it.— Missuss D
- My brother (who was 6 at the time) would never flush the toilet in fear of our new house being blown up! Anon
- I used to believe that monsters lived in my toilet and they ate my poop and urine when i flushed the toilet.Anon
- When I was 8 I thought a spider lived in the toilet and would bite me if I sat on it.— Mike
- After my dad read The Hobbit to us, when we were little, I thought that Gollum lived in the toilet. — PixelFish
- It never occured to me as a child that teachers lived in houses. I thought they lived at school...— Heidi, Pittsburgh, PA