When I was a kid, I always heard the phrase "don't drink and drive".
I thought it was because if you had a few drinks of alcohol while driving, it would instantly make you drunk beyond all reason.
I thought there was something that happened when you combined driving with a few sips of booze.
A childhood belief about cars

others believed things like this
- I used to belive that it was Illeagal to drink ANY beverage while driving, not just alcohol.— Emma*
- I used to believe that if you swallowed wine or beer in two sips then you would get drunk— Heather
- I would think that every car that either my mom or dad wasnt driving a ghost was drivingAnon
- I thought driving while having to pee was illegal.Anon
- I used to think that apple juice was beer and I'd drink it all the time and pretend to be drunk.— Dee
- i thought going to school was getting on the bus and driving round all day until they dropped you off. Anon