When me and my sister were little, we thought that "rolling" our arms (putting them in front of our stomachs and making circles around and around) would make the car go faster. So when our family would make long trips on the highway, we'd say "dad, that car's coming up on us. We'll roll our arms to make us go faster". And we'd sit there and madly move our arms in circles, and little by little, we'd go faster. How stupid we were-didn't we know a car has such thing as a gas pedal?!
A childhood belief about cars

others believed things like this
- We used to think that if you ran swinging your arms around, you would run faster. — Christine
- Red shoes make you run faster. — Ann B.
- i used to think that the faster you go in your car, the faster the car radio went.— Matt
- i didn't beleive this, but a kid my sister knew thought if he screamed in a really high voice, he ran faster.Anon
- Whenever my fingers wrinkled from staying in the pool too long, I thought I was aging faster.— The Mortal Elf
- I have a cousin who thought he could run faster when he got new shoes .. Anon