In fourth grade, there was a kid in our class who insisted he was Martian. This went on all year. One day, playing this game of forcing people into the "Kootie Box" (a painted rectangle on an outside schoolwall), we all pushed the kid into the Kootie Box and he bumped his head. He promptly grew an egg sized and shaped lump in the middle of his forehead (he was not otherwise injured). For years afterward, my friends and I were convinced he was telling the truth.
A childhood belief about aliens

others believed things like this
- I used to think my forehead was actually called a three-head.— Fen
- i used to believe that when you pushed your belly button a baby would pop out im now 14 and know the truth — kelsey
- I thought that psychological torture involved forcing people to watch really sad movies!— Elviessa
- i used to belive that kidney beans were bean shaped things that grew in kidneys... untill yesterday — Jokey
- I used to believe I would be able to fly when I grew up. Sometimes I think that still might be truth.— Melissa M
- when i was little, i thought that a con artist was a person that painted pictures of people commiting crimes— kimkim