1. The old fellow grabbed my tray with a smile and was off, limping heavily on one leg that was obviously shorter than the other. 2. Pulling back my chair as I hurriedly retrieved three one-dollar bills from my pocket, he smiled and said, “God bless you.” 3. I was curious to see if this was a new service the airport had put in place.4. At that point, one of them would disengage from the group, clear any trash left on the table, wipe it down, and return to their co-workers.