I used to believe when I was about 4 that aligators lived in the sewer and when you had a poop they would swim up through the pipes and bite your bum. I always checked befour I sat down. I realised a few years later that they couldn't swim through the narrow pipes!
A childhood belief about fear of

others believed things like this
- When I was about 4 or 5, I used to believe that instead of bones, we had metal pipes. — TL
- I used to believe that car exhaust pipes were what propelled cars, instead of the engines.— Thomas Johnston
- i used to believe that pools had underwater doors that sharks were going to swim out of.— marky
- I used to dream that if I held my breath, I could swim through the air for brief amounts of time— Adam
- 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
- I thought that islands and continents were floating rocks so you could swim underneath them.— Kat