I used to be believe that the Tidy Bowl man (from the commercials) really lived in the toilet, and I would look for him all the time.
A childhood belief about general

others believed things like this
- I used to believe that toilet seats were for kids only and that adults sat directly on the bowl. — Evan Klyne
- I used to believe that we got sausages from pulling them out of pigs bums - all neat and tidy. Mmm— L. Webb
- I used to believe that monsters lived in my toilet and they ate my poop and urine when i flushed the toilet.Anon
- I used to believe that crocodiles lived in the toilet and would bite my butt when I had to go to the loo.— Oz
- 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