Almost everyone sings - maybe in the shower, maybe while driving down the freeway, but we all do it. The only problem (well, besides the fact that we might be off-key) is that we don't always know the words. Many people make up their own lyrics, or hum a bit when they just don't know the lyrics. When I was younger, my friend's sister used to sing "Shot through the heart and you're too lame" along with Bon Jovi who said "You're too blame." And I am sure that I continue to massacre several songs.
What messed up lyrics do you commit, or have you heard?