I'm not sure how old I was, maybe 7 or 8. This is before I knew what sex was or what a guy's "tool" was for. Well, while in the shower, sometimes the water would hit me just right and I would get hard. I thought this meant it was time to get out of the shower and that "the hard stick" was a towel rack. And I would hang my towel on it!! LoL
A childhood belief about rude bits

others believed things like this
- 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 think that if you go into a shower nothing can hurt you because you're protected by water — Foxxip
- I used to think I could get pregnant by using my dad's bath towel. Terrifying.— Laura
- 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 think that trolls lived in my shower drain and showered with my dirty water— Troll bather