When I was young, I used to believe that if your pee or poo was mixed with someone else's... like if they didn't flush or like in an outhouse... the mix of the two created a smelly bathroom AND a noxious gas that could poison you.
A childhood belief about weeing and pooing

others believed things like this
- I once told a friend of mine that if you held in a smelly burp, it'd turn into a fart. She believed me.Anon
- I used to believe the "hair" in artichokes was poison.— Dawn
- i used to think guns shot poison bulletsAnon
- I used to believe that if you sniffed a really stinky fart, it would poison your insides and die.— Fartcheeks
- i believed that carrots with milk was a deadly poison until i was 11.— Jennifer
- Thunders are created because of the collision of cloudsAnon