When i was 3 or 4, my reliable freind explained to me that blonde people and ginger people were an evil race of alien invaders that couldn't quite get the "proper" hair colour right on their human disguises (me and my freind both had brown hair).
I always cower in abject terror every time my blonde "human" teacher talks to me...
A childhood belief about hair

others believed things like this
- I used to believe that you could naturally have dark hair with blonde streaks.Anon
- after my mom told me I had strawberry blonde hair - I used to look for the strawberries after I got a haircut— pearpod
- I used to believe that we (the human race) was a movie and God was showing it to everyone.— Sean
- I used to think that blue was a natural hair color but it as very rare, even rarer than ginger.Anon
- I was born brunette with brown eyes and dark hair, i thought people with blue eyes, had water in them.Anon
- I used to think people were called "human beans".— Dave