Until I was 13, I believed that the instant a boy got aroused he would spray semen everywhere. In swim class, I refused to get close to the boys (who everyone could see were suddenly very interested in us girls in our bathing suits...) just in case they sprayed at me.
A childhood belief about rude bits

others believed things like this
- I thought bathing suits were called "baby suits".— Katie
- When I was a little girl, I believed that all cats were girls and all dogs were boys. :)— Mary Ellen
- When I was little, I believed that all cats were girls and all dogs were boys. Go figure!— Laurie W.
- when i was kid, i believed dynamite was something you sprayed on rocks and then they would dissapear— big googely
- I once believed that a blow job was when you sprayed paint onto a car to cover up scratches.
— Roman - I thought that the difference between girls and boys was that girls have teeth.
Anon