When I was little, my grandfather told me that the trails of condensation behind jets were people being thrown out of the plane because it was too heavy!
A childhood belief about aeroplanes

others believed things like this
- if heavy people went on a plane i thought that it would tip over.— michael hague
- I used to believe that the streams left behind jets were people going to heaven.— kindofadork
- I used to believe that overweight people were heavy because they didn't poop.Anon
- I used to think that the trails that Airplanes left in the sky, that's how clouds were made.Anon
- I used to believe clouds were formed by jets and their exhaust. — Olivia
- When I was younger I thought that the jets that leave lines in the sky were rockets — Harry