I had an extremely vivid imagination as a child and sometimes my friends caught the brunt of it. When i was about 5, i told the boy across the road that there was a grass monster who hid in our lawn, and you had to run him over with the [toy] lawnmower or else he would grab your ankles and drag you into the grass. And then you'd become a hedge :P He totally believed me, and was apparently really freaked out by it because his mum ended up coming over and asking me if i knew anything about it. Of course i feigned innocence.
A childhood belief about monsters

others believed things like this
- I believed you ran the vacuum to cut the carpet and used the lawn mower to smooth out the grass.— Michelle
- I used to think that dandilions were marshmallows on grass— Vernon D'Souza
- I use to think mountains were dead dinosaurs and grass grew over it.— Tara
- When I was a kid I thought praying mantises were made out of grass— Landon
- I thought hills were dragons sleeping under the grassAnon
- I used to belive that zombie hands would burst trough the floor and grab my ankles.Anon