On one occasion as a kid I put various trash, dirt, leaves and miscellaneous things you'd find outside into a trash can, added water and using a large stick flung it all over my backyard thinking that the next morning I would have a bunch of friends outside to play with.
I also used to believe that the yellow line on the side of the freeway was my friend and her name was Anna.
A childhood belief about imaginary friends

others believed things like this
- My 5-year old cousin used to believe the garbagemen were stealing their trash.Anon
- When I was young I want to grow up yo be a trash man, becuse they only work one day a week.— Steve H
- I used to believe all liquids were water-based with things added to it to make different kinds of liquids.Anon
- My friend used to think hit me with your rythm stick was hit me with your fiddle stick!! lolAnon
- I used to think that poly anna was a person— BOB
- i used to believe that the water in the ocean went away a night......then came back in the morning.— Beverly