As a kid, whenever i heard the Pink Floyd song "Another Brick In The Wall" the line that goes "No dark sarcasm in the classroom " i heard as:
"The Dukes of Hazzard in the bathroom"
and the theme to Sesame Street where it says "sunny days sweeping the clouds away", as a kid i always sang it as:
"Sunny day, sleep a lot. a-ok"
Funny i've grown up now to become a music major in university and sing in various groups - where i have had trouble remembering lyrics to songs i've had solos in! go figure.
A childhood belief about misheard lyrics

others believed things like this
- I used to think the line in Pink Floyd's Another Brick in the Wall was "No dogs allowed in the classroom."— Gretchen
- Pink Floyd- Brick Wall.
I used to believe it was "we don't need no fart control" in the second line there.— Norwegian Dude From Kopervik - I thought that when you pressed the hazzard button in the car, the dukes of hazzard would come and save you.— smfd26
- I used to think that the actors on tv shows sang the show's theme song.Anon
- Until I was about 15, I beleived my Father was the person who sang the "Cheers" TV Show Theme Song.— Dustin
- I used to believe i could float away by opening up an umbrella on a sunny day.— Lecia