My parents used to tell us "this car won't start until everyone has their seatbelts on!" -- and I thought they meant it mechanically. So I would buckle all the belts of the empty seats so that we would be able to drive.
...When I figured out that the car *did in fact start* even when not all the seatbelts were fastened, I figured it must have some weighing mechanism under each seat that told it whether or not there was a person there, and only needed it buckled if there was.
A childhood belief about cars

others believed things like this
- 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 believe (when i was little) i could make the wind stop and start by saying, "stop" and "start"— Ali
- My dad always told me never to swallow the pips from apples because trees would start growing in my stomach!!— ALISON W
- My uncle told me that if I didn't wash my ears when I took a bath, corn would start going out of them.— Ebod
- I thought that when I grew up I HAD to start wearing polyester like my mom.— levi lady
- I used to think that the moon was fastened with something so it wouldn't fall— Kelvin