I always thought "wet dreams" were like female menstruation.
In grade 6 we had a sex educator come in and she told stories of what boys would tell their parents after they had a wet dream. Would they tell them they accidentally wet the bed? Would they grab the sheets and throw them in the laundry?
I said "You could pretend you cut yourself and it accidentally bled all over".... I was so embarrassed, yet still didn't know what exactly a wet dream was!
A childhood belief about general

others believed things like this
- My Grandpa told me if I picked my nose I could accidentally pull out my eye. — Jan St. Louis
- When I was little I thought you could get arrested if you accidentally skipped a number while counting.— Hailey
- I used to believe that if you accidentally ate grape pips you 'd get appendicitis.— Sue Beach
- I thought that life is a dream and when you die you wake up (maybe it's true who knows?)— Naos
- I used to believe that people got lead poisoning from being stabbed (accidentally) with pencils.Anon
- I used to think life was a dream and I was in heavenAnon