when i was a kid i used to think that when you pooped and peed and then fluched it down the toilet it was feeding monsters in the sewers and that if you didn't use the bathroom too often that they would starve and come up looking for food.
A childhood belief about fear of

others believed things like this
- I thought that toilet paper was bread and by puting it it the toilet i was feeding the ducks at the bottem.— Gringo
- When I was a child my Grandma told me if I threw food on the fire I was feeding the devil— Anthony P.
- My mum told me that if you eat while you're on the toilet, you're feeding the devil! — Claire
- I used to belive that when I would poop I was feeding all the fishies that got flushed downthe toilet!— Fish Feeder
- I used to believe that monsters lived in my toilet and they ate my poop and urine when i flushed the toilet.Anon
- I'm black, so as a child I used to assume that white people pooped peach the way I pooped brown.— Rick