When I was little (maybe 5 or 6?), I was allowed to sit in the front seat of my mom's old car. When I couldn't sit in the front seat of newer cars and asked why, she said it was because they had air bags. When I asked what air bags were, she described them as a balloon that comes out when the car gets into an accident. So for years I pictured a helium-filled balloon floating up next to the car to alert anyone nearby that an accident had occurred.
A childhood belief about cars

others believed things like this
- My sister told me once that if I sucked too much helium out of a balloon, my lungs would explode.Anon
- I thought brown paper grocery bags would fit more than plastic grocery bags.Anon
- I fully believed, up until about 6 years old, that the word 'accident' was a noun that meant 'burnt toast'.— Karl Goetz
- I used to believe as a child that t-storms (aka thunderstorms) where actually tea bags falling from the sky.— Samantha
- when i was a child (of course)i used to believe that the sea is salty because God throws bags of salt into it.— Kafka
- i believe in the tooth fairy so much that i make paper bags for her!— Monster High girl