When I was a kid I use to believe that as soon as an individual got out of my eye sight they would turn into a monster not necessarily a bad monster just a monster.
A childhood belief about monsters

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 would turn the lights off and then leg it up the stairs thinking a monster would be chasing me.Anon
- 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 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