I used to believe that there was a colony of monsters in the attic - they were shower hoses with scissors or gintraps on the end. I believed that if I laid in bed with my legs out straight, they would come and chop my head off, then put it in a jar in the attic.
A childhood belief about monsters

others believed things like this
- i used to believe that a mortgage was a big pirates chest that my mom and dad used to keep in the attic. — lou
- I used to think that a family of evil bears lived in my grandparent's attic.— jasonchic
- i used to believe that edward scissorhands lived in our family friend's attic.Anon
- When I was a child, I used to believe that the school attic was full of ghosts and elfs.— Lia
- Once I thought these two teenagers who used to wash my mums car lived in our attic. Hahaha!— Roxanne
- I used to think that toilets led to the shower head. That's why I never took a shower :D— scared