I used to believe that if I held the flush button on the toilet down for long enough, it would be endlessly flushing and would forever drain the water supply. I would lie awake dreading this.
A childhood belief about bathrooms

others believed things like this
- I used to beleve when i was 4 that the flush on the toilet was to wake up toilet monsters.— Millie
- 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
- how many us believed you would go down the drain with the bath water? I did!— Amy
- 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