After watching Stephen King's "It" when I was about 12, I used to cover up our air vents and plug the tub drain whenever I was in the bathroom. I was so afraid that the clown would come and get me.
A childhood belief about clowns

others believed things like this
- I used to believe that once you pulled the plug in the bath a shark would swim out of the drain and eat you.— Amy
- If you left a plug socket on with no plug in all the power would run outAnon
- I used to believe that sharks lived under the pools where the air vents were. — Carol
- I used to think that the music from a car radio came out of the heater/air vents in the dashboard.— Joe
- I used to think that a clown lived under my bed and tried to eat me while i was asleepAnon
- I used to believe that i was turning into a clown whenever I cried becase my cheeks and nose would become red— melissa