I used to believe that if I dropped something down the floor vent while someone was going to the bathroom, they would turn into a monster and eat me...
A childhood belief about fear of

others believed things like this
- My mum told me that if you picked your nose and flicked it on the floor then it would turn into a monster!— MadMack
- I believe that there is a monster in the air vent and watches me when I put on my clothes— Blablabla
- I was told that if you dropped food on the floor, the devil kissed it. — Teresa
- I would turn the lights off and then leg it up the stairs thinking a monster would be chasing me.Anon
- I once thought a vent in my hotel room led down to the center of the earth.— flarn2006
- I thought the boogey monster was a monster that ate boogers at night in front of youAnon