I honestly used to believe that whenever water was draining- be it in a toilet, a shower, whatever- the swirling water could quite possibly create a tornado. When showering I had this intense fear that a tornado would form behind me, where the drain was. I believed this until I was at *least* nine and it still gives me the creeps.
A childhood belief about bathrooms

others believed things like this
- I used to think that trolls lived in my shower drain and showered with my dirty water— Troll bather
- I used to believe that if I flushed the toilet before I showered, I would take a shower in dirty toilet water.— Chris D
- I used to believe that when there was a tornado watch, you were supposed to sit down and watch the tornado.— Kay
- how many us believed you would go down the drain with the bath water? I did!— Amy
- I used to think if a tornado sucked up a poisonous mushroom, it would die.— Will
- When i was little i used to believe that i could suck up a tornado in a vaccuum if it came in my house.Anon