when I was young I had an imaginary friend called mark and we used to play football together (how weird because I was the only one who could actually physically kick the football).
A childhood belief about imaginary friends

others believed things like this
- When I was a kid, I used to think that the only way you could play football was if you had giant shoulders.— Sam
- When I was little, I used to believe that football players really had shoulders that big.— Angie
- I used to believe that a football ref's flag was a banana peel.Anon
- I used to think that the Hunchback of Notre Dame was a football player.— Wendy
- I used to believe that a hat trick in football was achieved when a player scored a goal with their head!— Andy
- I used to have an imaginary friend named Mr. Nobody. He would protect me from my imaginary enemy, Bad Elmer.— Kdees