mc5 - I'm not wearing any pants!

Take a familiar (or at least famous) quote (e.g. "Don't go around saying the world owes you a living. The world owes you nothing. It was here first." by Mark Twain). Then find a good stopping point (e.g. "Don't go around saying"). After this, add the phrase, "I'm not wearing any pants (e.g. ""Don't go around saying, "I'm not wearing any pants!").

Stevie

Finished with my woman 'cos she was not wearing any pants

Kim

Nobody likes me, everybody hates me
I'm not wearing any pants

Stevie

I feel a stirring in The Force, as if I were not wearing any pants.

Phil

The Dude abides. I don't know about you but I take comfort in that. It's good knowin' he's out there. The Dude. Takin' 'er easy for all us sinners. Shoosh. I sure hope he's not wearing any pants.

Stevie

I am unable to come to the phone right now, because I'm not wearing any pants. I'm absolutely changing my outgoing message to this.