I used to believe that the "beep" sound they make in place of a curse word on TV was actually what came out of people's mouths who had Terret's Syndrome.
A childhood belief about swearing

others believed things like this
- i used to think that the word "stupid" was a curse word, ranging in scale right beside the "f" word.Anon
- I thought "sake" was a curse word— shh
- my friend told me that sex was when people peed into each others' mouths.— gross
- Up to the age of 12 I was convinced urinating while in mid copulation resulted in a Downs Syndrome baby.— Nathan Harlow
- I used to believe that flea markets were a place people sold fleas, or the place was infested with fleas— Kelley
- I used to believe babies came out of mouths.— Hailey