Wow. How far has Bobby McFerrin fallen?
...Okay, maybe that's not him, but this is one smooth player, here.
Sure, this guy could have held out for a cart with a built-in beeper. However, by forcing himself to do his own beeping, it gives him an excuse for avoiding small talk with the elderly tourists he has to schlep around the airport who want to whip-out pictures of their grand-kids and tell painfully-boring stories of life before the Internet.