Ever since he was in preschool, my youngest brother's favorite movie has always been "The Princess Bride"; he used to watch it constantly. At one point toward the end of the movie, a good guy sneers at a bad guy, "I want my father back, you son of a b****." Luckily, we didn't have to be concerned about my brother learning that naughty word: when he was about nine, we heard him recite the line as, "I want my father back, Hassanavabidge." He thought the bad guy's name was Hassanavabidge.
A childhood belief about swearing

others believed things like this
- When I was learning the Lord's Prayer, I used to say, "Our Father, who does art in heaven...."— Karen
- I used to believe that EVERYTHING we did was being filmed for someone somewhere to watch as a movie— KatBird_27
- My father convinced my little brother it was "Mount Reindeer" not Mount Rainier.— K
- Because of cartoons, I thought that to drive you'd just turn the steering wheel back and forth constantly. — Mitsuki
- I used to think that if a movie was advertised on the side of a bus, that meant it was really good. — Aretia
- I used to beleive that if you point at a graveyard, it would point back!!(whatever that meant)— scary ashley