Best ever:
*Phone rings*
*Jerry Seinfeld Answers*
Telemarketer: "Hi, are you interested in purchasing <insert product name here>?"
Seinfeld: "Mmm, sorry, but I'm about to step out the door and I can't talk right now...tell you what, why don't you give me your home phone number, I'll call you tomorrow, and we can talk about this some more."
Telemarketer: "Um...I don't think we're allowed to do that."
Seinfeld: "Why not? I thought we were friends.... You called me at my house, so why can't I call you at your's?"
*click*