My little brother, when he was in 1st Grade, used to believe that his Principal had a bed of nails and he would make the bad kids lie on it. I think his idea might have come from the fact that the principal's name was Mr. Screws. He came home one day because he got into trouble at school and was terrified that the principal would come get him and make him use the bed. (We lived across the street from the main entrance which didn't help matters)
A childhood belief about teachers

others believed things like this
- I didn't know whether nail files were supposed to make your nails sharper or duller.Anon
- i used to think that biting my nails would make my fingers fall off! ;)— Cassandra
- I always believed that we lived in Manchester (we didn't) but it was always the main place on the local news!— Richard M
- When I was a child, I used to think that one day my brother and I would be in the same grade at school.— Alexis Yahir López
- I used to believe that if you used the kids' shampoos that said 'no tears' it would make you happy.— Emmy
- I thought Jesus was made up to make kids behave.Anon