I first learned the F word when I was around 12 years old. I thought it was a cool expressive word, one that my contemporaries and I had coined. At least I thought so until I used it at home one day. Sincerely believing that my parents would have no idea what the word meant, I called my brother an F'er, right in front of them! When I saw the horrified look on their faces, it began to dawn on me that they knew what the word meant! After a severe lecture and threats of other dire consequences, I learned to watch my language (at least around mom and dad).
A childhood belief about swearing

others believed things like this
- I used to believe everything starting with f was a bad word after I learned about the "f-word". — Sarah
- i used to think that the word "stupid" was a curse word, ranging in scale right beside the "f" word.Anon
- For years I heard the word "pedophile" and thought it meant a pedicurist's tool.— Lauren
- 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 believe that "nuptial" was a naughty word. I thought it meant nipple. XD— Sara Hagen
- I fully believed, up until about 6 years old, that the word 'accident' was a noun that meant 'burnt toast'.— Karl Goetz