Fucking With The Criminal Element

Me:  "Okay, that's one white rose with Baby's Breath and greens.  That'll be $4.52, with taxes."

The customer handed me a 20 dollar bill.  I keyed "2000" into the cash register and pushed the "CA/TX" key.    The cash drawer opened and the screen read "15.48"; the change.  I placed the 20 dollar bill askew on the bill sectors and retrieved one 10 dollar bill, one 5 dollar bill, one 25 cent coin, two 10 cent coins and three 1 cent coins.  I handed the change, together with the cash register receipt, to the customer.  I placed the 20 dollar bill in its proper bill sector in the cash drawer, but before I got a chance to close the cash drawer, I hear;

Customer:  "Actually, I am gonna need that 20 dollar bill later.  Gimme the twenty back, I'll pay with dis 5 instead."

The customer handed me a 5 dollar bill, the very one I just gave him, and smiled.
I smiled back as I closed the cash drawer and slipped the 5 dollar bill into my pocket.  The customer looked bemused.  Before he had a chance to protest I reached for the wireless telephone set and handed it to him,

Me:  "Look up above my head.  Wave to the camera and say "hello".  It records audio as well.  Now you have two options sir.  You can either walk out the door now, with your rose, and having left me a 5 dollar tip, or you can telephone the Police.  If you choose the latter option, be aware that I will insist that you be charged with 'Attempted Fraud', which, if I am not mistaken, entails both a hefty fine and a custodial sentence - perhaps seven days I think.   Of course, the video and audio of our interaction are more than enough evidence of your attempted subterfuge.  Then again, I could be lying about the camera.  If you call the Police, and I am lying, the Police will side with you in the ensuing "She said - He said" impasse and you will have successfully perpetrated your fraud.  So what will it be?  You've got to ask yourself one question, "Do I feel lucky?"  Well?  Do ya punk?"

The customer turned around and walked, slowly at first, but quickening his pace as he approached the door, and left.

Me:  "Thank you for thinking of us for your floral needs.  Please come again."



UPDATE

There is no camera.


UPDATE II

The damn 20 dollar bill was a counterfeit!  Not to worry though, I fobbed it off  on some blind guy in change for a 50 dollar bill two days later.