I used to think that with dry hair shampoo was used on dry hair (not wet) and was useful if you needed to wash your hair being miles away from a tap.
A childhood belief about bathrooms

others believed things like this
- My friend convinced me that if I used a bar of soap to wash my hair instead of shampoo that I would go bald.— Michelle
- I used to think that if i put conditioner in my hair before the shampoo my hair would fall out.— Jerry Moe the Gimp
- 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 if someone take his bath with a hair shampoo, their body will become hairy.— roslin
- 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