My brother used to believe that ceiling fans were helicopters flipped upsidedown and stuck in the ceiling.
A childhood belief about around the house

others believed things like this
- I used to believe that the little 'helicopters' that fall from the trees were dead tadpoles.— Chester Finnigan SnapDragon McFisticuff
- I thought that on the show "American Chopper" they built helicopters.— Alex319
- I used to believe that Elvis died when he was trampled by fans.— Aretia
- i used to believe that the moon was the sun flipped over!!— lay lay
- If you cross your eyes, they will get stuck like that.Anon
- Up until about six, I use to believe that everyone had a different color of pee and I was stuck with yellow.Anon