I used to get pee and poo mixed up. I finally found out that pee meant "water" and poo meant "something."
A childhood belief about weeing and pooing

others believed things like this
- I thought that hydrogen was pure water (since I knew hydro- meant water) and H2O was impure some how— Hexetic
- i used to believe that sex meant love and that having sex meant the two people would live happily ever after.— amy
- When we were little my sister thought if you mixed cow’s milk and water you’d get goat’s milkAnon
- few years ago, finally I found out that asparagus are not big sea fishes.. — nixass
- As a small child I believed that the word was "nakeup", finally I found out that it was actually "makeup".— Hannnah P.
- I used to believe whenever I got an erection it meant I had to pee.— Adam