When i was little i used to think that the ball pits in playgrounds had water in them, and that i would drown if i went in. It wasn't until i was too big for them that i learned otherwise.
A childhood belief about toys

others believed things like this
- I used to believe that if you swallowed cherry pits, you would have a tree growing in your stomach.— porkchop
- A friend of mine thought that some olives grew with red edible pits (pimentos).— HA
- One day when I was 6 I learned that the toilet was NOT a water cooler. :/— J.C.
- I used to think volleyball was actually called "ball-y ball"Anon
- I thought that hydrogen was pure water (since I knew hydro- meant water) and H2O was impure some how— Hexetic
- I used to believe that if i splashed water on the wall during a bath, the water would turn into spiders— justin