I believed that the sound of the toilet flushing was the devil, and so I make it out of the bathroom as soon as I could after flushing it, otherwise the devil would get me (I was Catholic, by the way- and am no longer).
A childhood belief about fear of

others believed things like this
- I used to believe the sound of a flushing toilet was nearly identical to the 90210 theme. — Laurenne
- I had tinnitus as a child and used to believe that it was the sound that the devil made when he was closeby— Helen
- I used to think if you didnt get up before flushing the toilet would eat you...Anon
- i used to think when it started raining it was god flushing the toilet— edel
- I was certain that rain was created by God having a pee and flushing his huge toilet above us— Emma H
- I used to believe that if you didn't close the toilet lid after flushing, you would get sucked down into it.— Maya