I used to believe that giving someone the finger actually put a curse on them. So I'd secretly go around my kindergarden class "cursing" the kids I didn't like luckily with my ring finger.
A childhood belief about swearing

others believed things like this
- I used to believe that a half moon was gods finger nail, and his finger was pointing downwards.— clo
- Never point at a grave, if you do your finger will rot off.— KL.R
- I used to believe that if my finger was ever cut off, it would grow back.— Chrissy
- i used to believe that if i bit my fingernails then a finger would grow in my stomach— polly
- When I was little, I thought you had to put a finger under the water to make it hot. — M_2
- I used to believe that if you picked your nose far up enough, a snail at the top would bite your finger.— Jenny