If you haven't seen the new "CMPD Serves" presentation and cue cards, well here you go. Seriously I could not have made this up myself:
Leave a positive impression that will earn you a genuine thank you.
"On a positive note you'll likely be out of jail without bail before my night is over"
Oh and don't forget to give your customer their free sandwich.
The entire WFAE story on this brilliance is here.