When the song "Dumb" of Nirvana came out, my friend Pedro used to think that the final parts of the lyrics was Kurt Cobain repeting "Africa No", and he started to think Nirvana were racists on that song, when, actually Kurt Cobain was singing "I Think I'm Dumb".
A childhood belief about misheard lyrics

others believed things like this
- Remember the old Tubes song "White Punks on Dope". Thought they were singing "White Folks are Dumb"
— WailerMan - I used to believe that every death had an autopsy ;-;
I was so dumb as a kid lol— Brii - when i was like 6 i thought only little kids my age could have long hair. dumb....lol— candy
- i used to think that a'quarterback' was some guy who ran around with a giant quarter on his back! i was dumb— :]
- I used to believe that if you farted really hard, you could fart a hole in your pants. How dumb was that?— stargirl
- in the song with the lyrics "take your passion" my sister used to always think it was "take your pants off"— Steped