When I was little ny grandpa kept his boat in the Garage, and we would always want to climb in it. So to keep us out he told us there was a mean ugly troll in side the attic.( which happened to be right above where the boat was parked.)I belived it for a while, but he kept telling us he was true as a joke.
A childhood belief about monsters

others believed things like this
- I used to think it was true that only ugly girls poop and I thought I was an ugly girl because I poopedAnon
- I used to believe that the last line of Row Row Row Your Boat was 'Life is butter dream'.— Mindless Misfit
- row row row your boat gently down the stream...merrily merrily merrily merrily life's a butter bean.— bleeslady
- I used to think that if you had a garage sale that meant you were selling the garage!— ~Curtis~
- My mom always told me if I made an ugly face it would stay that way forever.Anon
- I totally believed my siblings when they told me the family was aliens and had a space ship in the garage.— cully