I used to think that those little things at the bottom of public pools that are water filters (I think) would suck our your intestines if you got too close, so I spent the majority of my childhood being really really frightened of public pools.
A childhood belief about swimming pools

others believed things like this
- I used to believe that "car pools" were cars with pools in them, like in the rock videos.— Smart Cookie
- I used to think that the pools was a swimming competition.— Matt
- I used to believe that sharks lived under the pools where the air vents were. — Carol
- i used to believe that pools had underwater doors that sharks were going to swim out of.— marky
- my Dad told me ice rinks were defrosted every evening and turned into swimming pools— neil
- i used to believe that public houses were just houses were the public could go and liveAnon