In Kindergarten, my teacher said she was "tired of all this tattle tale crap" and my jaw dropped because I thought crap was as bad as saying any swear word... I told my parents and they laughed.
A childhood belief about swearing

others believed things like this
- I thought the C-word was crap.Anon
- I thought that "fool" and "What in the World?" and "crap" where ultra-vulgar words.Anon
- I used to think that everytime a chicken took a crap it laid an egg. I was so nieve.— Bob.
- When my grandma was little, her dad would tell her that the freckles on her face and arms were fly crap.Anon
- I belived that when I took a crap, my turd(s) would turn into snakes and bite my booty.— Butters.
- When I was in kindergarten, I used to believe that they locked the teacher's in the teacher's lounge at night.Anon