When me and my sister were little my mom told us that if we went to the deep end of the pool when we were swimming that an invisble monster would suck us under.I didn't really pay attention to her but my never wated to go in the deep end
A childhood belief about swimming pools

others believed things like this
- i used to believe there were invisible sharks in the deep end of the pool, thanks to my older brother.— Melissa
- I used to believe that, in cities, if you dug deep enough in anyone's lawn, eventually you'd hit the concrete.— Kevin Fox
- When I was a kid I though facial hair on a man is what gave them the deep voice — Adrian Z.
- I used to think that a "pool shark" was an actual shark that lived in a swimming poolAnon
- I used to dig a super deep hole thinking it
would transport me to the galaxy — Rafaella - I used to believe that, in a deep and profound kind of way, the words "door knob" rhymed with "said so". — Katie