We ate at the Burger King in terminal D at the Philadelphia airport before we boarded our plane to go back home. The receipt says "Hope you enjoyed your stay in Philadelphia."
This seemed at first a strange thing to put on a receipt on the airport. After all, half the people in the airport are arriving and not departing. But of course people don't hang out in Terminal D if they've just arrived. They're on their way to get their luggage and leave the airport. When my family and I travel, we often stop at that Burger King when we arrive at the airport to try to arrange all of our stuff (and perhaps get a snack) before we lug everything to baggage claim.
I wonder how many of the customers are really arriving passengers? 5%? More? Less? I wonder if Burger King cares or is just satisifed that the number is low?