When I was a child, one day while travelling on the interstate with my uncle, a car passed us and my uncle said, "Whoa, he's running 75 miles per hour!"
I asked "How can you tell how fast that car is going?" And he replied, "Well, if you stare really hard into the center of their hubcaps, you'll be able to tell." So for years, I went down the road with my little head bobbing up and down, side to side, wondering why I couldn't tell how fast the cars were going. I don't even know how old I was when I finally figured out that my uncle had just been estimating the other car's speed judging by how fast we were going in our own car.
A childhood belief about cars

others believed things like this
- When I was little i thought that seconds were so fast that you couldn't count them.— Baby
- When I was little I used to think that my uncle lived in a bus shelter.— tigga
- my uncle was a doctor, so when he told me his vw could fly, i believed.— boodles
- this guy i used to go to school with thought that Ned Kelly was his uncleAnon
- My uncle used to believe that he would grow up to be a fire engine or a tiger.
If only...— Josh Y. - i used to think that 'uncle sam' was a real person...who took all my parent's money!— julie