Once when I was young, I pointed out to my little sister that some of my teeth were called K9s, because I was 9 and my name was Katrina. I explained that she had N7s as she was only 7 and called Natasha. Apparently she believed this for years!
A childhood belief about general

others believed things like this
- I believed that the breed of dog called Boxer was called that because they could stand up and box.Anon
- I used to think that the things you get in your teeth were called feelings.Anon
- I believed alligators lived in toilets, and one apparently got hold of my sister.Anon
- When I was very young, I assumed that false teeth were taken from dead people's teethAnon
- my sister and i used to think sideburns were called "hash browns."— ginny
- Until I was around 8 or 9 years old, I thought dentists took your teeth out and replaced them with new teeth.— Verapamilo