I used to always pull back the shower curtain before I went to the bathroom to make sure someone wasn't hiding in there to kill me while I peed...
A childhood belief about bathrooms

others believed things like this
- I used to think when I peed in the shower as a kid, the water coming back through the showerhead was my pee.— gregg
- I used to believe that take a shower meant to go steal a shower from the storeAnon
- I used to think that toilets led to the shower head. That's why I never took a shower :D— scared
- I used to believe that when I went to sleep, my Barbie dolls would make out and plot to kill me.— ClaireRat
- I used to believe that if you took a shower after a day of tanning the tan would come off in the shower— Shar
- i used to believe that if i wasn't nice to my toys, they would fight back.
Anon