I used to believe that if I didn't tuck in my feet into the blanket when I was sleeping, a monster under my bed would grab my foot and suck me underneath. There would be a dark lair under there and the monster would make me their new leader of darkness. Then the monster would leave and go out into the world while I was stuck under the bed. I still really haven't grown out of it; I still tuck in my feet. :P
A childhood belief about under my bed

others believed things like this
- I thought the boogey monster was a monster that ate boogers at night in front of youAnon
- I Used To Believe The Monster Beverage/Energy Drink Was Monster Milk!— KellGirl
- I used to believe that when you went poop a monster would eat it— Confused till age 7 now 11
- I used to believe that a monster would crawl out of the bath tub and eat me— Alex
- when i was little i used to think that when i farted, that a little monster inside me was trying to get out. — annie
- I used to think Monserrat sounded like monster rat.Anon