I thought that if I sat on the toilet (as opposed to "hovering"), crabs would jump up and bite my butt.
My friend's mother had tried to tell me about pubic lice, and I was all confused, thinking that hoards of sea-crabs lived under the rim of the bowl.
A childhood belief about fear of

others believed things like this
- I used to believe that crocodiles lived in the toilet and would bite my butt when I had to go to the loo.— Oz
- i used to think that when i was pooping a crocodile could come out of the toilet and bite my butt off.— derek
- When I was 8 I thought a spider lived in the toilet and would bite me if I sat on it.— Mike
- My little brother was afraid of toliets cuz he thought monkeys would jump out of his butt.— ~~~ Crazy Bro ~~~
- i used to believe that when i used the tolit a snake will come out and bite your butt. lolAnon
- I used to believe that toilet seats were for kids only and that adults sat directly on the bowl. — Evan Klyne