My cousin lived near what my Parents, and Aunt and Uncle called a swamp. They told us never to go in the swamp because it had alligators and crocodiles in it. We wouldn't go in and if a ball went in the swamp it was gone forever. They just didn't wan't us getting hurt, but I was scared to death when we brought our dog over when he would travel into the swamp. We live in New England, so when I got a little older I realized it wasn't really true.
A childhood belief about general

others believed things like this
- I thought that when I got older "they" would invent a cure for death and I could live forever.— wishful thinking
- I used to believe that "Earwigs lived in your ears", scared
me to death for years.— Will Chapman - I used to believe that crocodiles lived in the toilet and would bite my butt when I had to go to the loo.— Oz
- I used to think volleyball was actually called "ball-y ball"Anon
- I believed alligators lived in toilets, and one apparently got hold of my sister.Anon
- My sister told me that Fraggles lived in our basement. I used to sit down there forever so I could see them. — Suzie