I used to believe that getting grey hair was the warning that the lifetime's supply of hair in your head was running out. (A bit like a roll of tape in a cash register turns a different colour to let you know it's nearly all gone).
A childhood belief about hair

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
- I used to think the lady behind the cash register at the A & P got to keep all the money in the drawer.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 hold my hand over my hair whenever i left the house and it was windy incase my hair blew away— lisa
- I used to believe that you could curl your hair by twirling a strand of hair wrapped around your finger— Anonymous
- I used to think that bleaching your hair meant washing your hair with toilet bleach.Anon