I used to think that diarrhea was a combination of poo and pee, which is why it was so runny. I had no concept of excremental anatomy and assumed that my anus and urethra were in the same place. When I found out that men peed out of their penises, I assumed that men were unable to have diarrhea because there was no opportunity for pee and poo to mix in that situation.
A childhood belief about weeing and pooing

others believed things like this
- My nephew (age 7) thought tampons were plugs for diarrhea. Anon
- When I was 3 I assumed that my parents were 18 and that every grown-up was 18.Anon
- Since he had fought in WWII, I naturally assumed my grandfather had killed Hitler himself.Anon
- When I was very young, I assumed that false teeth were taken from dead people's teethAnon
- When ever someone said ''read aloud'' I assumed aloud was the title of a book. Lol.— Delaney
- i used to think that housten was a real person and not a place, im 16 and i found this out yesterday......!lol— jess p