For about a year when I was little, I had to reach my hand in the toilet (not the water, just inside the bowl) to feel and make sure there wasn't an invisible monster in it before I could use it.
A childhood belief about fear of

others believed things like this
- Yesterday I realised that invisible ink doesn`t make me invisible.— Jonathan Eleven years old
- I used to think that my right hand wasn't my right hand anymore if I turned around.— Mike
- I used to believe that toilet seats were for kids only and that adults sat directly on the bowl. — Evan Klyne
- When I was little *I thought that if I dressed in all white I would become invisible.Sadly,I wasn't.XP— Kiki
- I used to believe that if I flushed the toilet before I showered, I would take a shower in dirty toilet water.— Chris D
- when i was little i used to think that when i farted, that a little monster inside me was trying to get out. — annie