I used to believe that if you and someone else sticked their arm out of both sides of the car window when the car is going and flapped them, the car would fly.
A childhood belief about cars

others believed things like this
- that if I flapped my arms hard enough, I could get airborne.— DeQuendre
- I used to believe that waves were made by whales who lined up in a row and flapped their tails.— Passionola
- I used to think that the right sides of roads are empty in England, since everyone drives on the left.Anon
- My mom used to tell us kids that if you put your arm out of the car window,that it would fall off.— Kathy G.
- I used to believe that the moon lived on top of our house because I could always see it from the window.— Classic NYer
- When I was little I thought a widow was someone who stares at you through a windowAnon