When I was really quite young I was in the car with my dad driving along, when I saw a vapour trail in the sky. I asked dad what it was and I heard him say, " That's a paper trail, it comes from a plane." I imagined the people throwing paper out of the plane as it went along. When I was 15 I ended up having a debate with a boyfriend about what it was; I was 100% certain it was still called a "paper trail". How embarrassing...
A childhood belief about aeroplanes

others believed things like this
- when I was small I always thought that the solar system ended, and then it was just white paper after that— sparrow
- When I was young I had a plan to shoot big piles of paper up to the sun so it would never burn out.— Waterbottle
- I used to believe that house fires were caused by foolish people who put paper on the stove.— C.C.
- I used to think that when you sent a fax, the paper went through the wires.— em
- When I was little, I believed that clouds came from paper mills.— Ryne
- I use to think that mummies were wrapped in toilet paper.— Glowworm