When I was about 7, my family was in the car and I overheard my dad discussing maintenance, telling my mom that when we got home we'd have to rotate the tires. I was very confused and asked, "Um, Dad, aren't they rotating right now?" I got harassed about that one for years.
A childhood belief about cars

others believed things like this
- I used to be really confused about the whereabouts of God.
On account of: "Our Father who Aren't in Heaven".— Tania Bradshaw - When looking at the clouds and seeing them move I use to think it was the world rotating beneath.— Andy
- I never did understand why it was "Our Father, who aren't in heaven".— Edith
- Until I was well along in years I always thought our family was Irish because my dads birthday was March 17th— Gladys
- I thought the word mailman was male man and it seemed dumb to me as aren't all men male?— andalite
- I was about 6 and thought my family invented the fart because I never heard anyone outside my family do it.— Bob