I used to think, that if you flushed the toilet, when you were on your own, the poo monster would come up and get you. Then I realized, that i was no longer suceptible to the poo monster. But I was suceptible to acne, among other things.
A childhood belief about fear of

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 their was a toilet monster named johny.— sexyallie_69
- I used to believe that monsters lived in my toilet and they ate my poop and urine when i flushed the toilet.Anon
- I used to believe that if I flushed the toilet before I showered, I would take a shower in dirty toilet water.— Chris D
- I used to think if I left the toilet seat open my cat would get flushed down the toilet.— G