When I was in Kindergarten, me and my friends heard the word "F***" in a movie and decided it was a quick way to say "forget".
Not too much later in the movie, we heard the word "s***" and decided it was the word "sheet" with a thick accent.
About a week later, we were all in class, and one of my friends was having significant trouble with a math worksheet we were doing. However, the sheet was not being taken for a grade, so, with the teacher all of three feet away, I loudly and proudly showed off my accent with the phrase "f*** that s***!"
I remember thinking, "Did the teacher mark all over her face in red crayon?"
I also remember taking math worksheets very seriously the rest of that year.
A childhood belief about swearing

others believed things like this
- In first grade, I thought that if I've never heard of a word before, then it wasn't a word.— Destiny
- i used to think that the word "stupid" was a curse word, ranging in scale right beside the "f" word.Anon
- When i was around 4, i thought "dead" was a bad word. I also thought "Forget it" was a bad word.— forget it
- I used to think that fart was a bad word and then i heard my mom say it once and I was so shocked.— Tara
- i used to think the word "friendship" meant a special kind of rocketship that you went on with your friends.— chips ahoy!
- When I was young, I heard the word 'minion' for the first time and thought it was a miniature onion.— Karin