When I was a little kid there was this doll that had hair that could grow, and you made it shorter by cranking her arm around, which rolled the hair back up inside her head. I remember seeing that commercial and thinking it worked like that for humans too, so I tried moving my arm around in a circle as if someone was cranking it because I wanted short hair. Needless to say I was not successful and I thought something was wrong with me.
A childhood belief about special powers

others believed things like this
- I believed that if you ate a piece of your own hair, a new strand of hair would grow on your head.— Ryo
- When I was younger I cut my Barbie doll's hair and wondered why it never grew back.Anon
- I used to think that everybody's hair was black and if you had blond hair, you dyed your hair.— ~_~CoolKid93_~_
- I used to believe that my head was filled with hair waiting to grow.— Poppy
- i used to believe that if you shave your head you could grow any type of hair like curlyAnon
- When I was little I thought that dying your hair means you kill your hair.Anon