I used to belive this: If I saw a stranger man and spoke to him, he would become a monster. This was because my mother told me not to speak with strangers. And because she said this I belived that strangers were dangerous.
A childhood belief about monsters

others believed things like this
- Strangers in the night, exchanging glasses...
well I was only young at the time!— ..maz.. - I used to belive that african was the language they spoke in all of africa— quark
- Since Germans speak German, I thought Jewish people spoke Jewish.— Lori
- I used to believe that a stranger was a man with an X on his coat— Gabe
- When I was little my dad told me that monsters jump out from spotlights and I belived it...— Cassie
- i was always told if i picked my nose my brain would fall out! i belived it for years!Anon