When I was little, 3 or 4 my friend and I had an imaginary land where we would go to in her backyard - "BumLand". In Bumland there were the BumPolice, who gave you tickets if you didn't moon a certain tree in the yard.
A childhood belief about imaginary friends

others believed things like this
- I used to believe that airplanes would land in your yard and pick you up.— Rachel
- I used to believe there was a money tree in every rich person’s backyard — Kb
- I used to have an imaginary friend named Mr. Nobody. He would protect me from my imaginary enemy, Bad Elmer.— Kdees
- I thought if you took some candy and buried in the yard, you would grow a candy tree.Anon
- I used to think that
"The land of make believe"
was
"The land of baked beans."— Baked Bean! - when i was little i believed that if you got three speeding tickets that you went to the electric chairAnon