Roger Murtaugh: [discussing a theory] That's pretty fucking thin.
Martin Riggs: That's very thin.
Roger Murtaugh: What the hell, thin's my middle name.
Martin Riggs: Your wife's cooking, I'm not surprised.
[fires his gun several more times]
Roger Murtaugh: What? What?
Martin Riggs: Nothin'.
Roger Murtaugh: Remarks like that will not get you invited to Christmas dinner.
Martin Riggs: My luck's changing for the better every day.