I believed that if you opened the door of a car while it was in motion, the air pressure would suck you out, just like in an airplane.
A childhood belief about cars

others believed things like this
- I used to think that you could get a tan if you turned the oven on, opened the door and stood in front of it.Anon
- That if you didn't have your seat belt buckled up when the car was in motion, it would crash.— Dave Smith
- I used to belive that an airplane was my mothers car. I don't no why. — Erilld
- I used to believe that Disney World was up in the sky because you have to take an airplane to get there.— lauren
- I used to think when an airplane ran out of fuel, it stayed stuck in the sky.— BoB
- I used to believe that when you flushed on an airplane, it would land on the people below.Anon