I used to believe that if I did not get off the toilet soon enough, and hand would come out of the toilet and poke my butthole. I always tried to finish as soon as possible because of this. Or, if I felt like I was taking too long, I would stand up at certain intervals as to confuse "the hand," making it think that it was not all in one sitting.
A childhood belief about fear of

others believed things like this
- I used to think that my right hand wasn't my right hand anymore if I turned around.— Mike
- I used to think you could get pregnant by sitting on a toilet seat.— Lisa
- I used to think that my dad was "smoking pot" when he would smoke his pipe while sitting on the toilet. Anon
- I thought that toilet paper was bread and by puting it it the toilet i was feeding the ducks at the bottem.— Gringo
- 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 if I flushed the toilet before I showered, I would take a shower in dirty toilet water.— Chris D