I watched a man count out change for a McDouble last week. Quarters, dimes, and nickels spread across the counter as the line behind him shifted from foot to foot. The cashier waited, steady as a rock. Twenty years ago, that same guy would have flashed a twenty and told

I watched a man count out change for a McDouble last week. Quarters, dimes, and nickels spread across the counter as the line behind him shifted from foot to foot. The cashier waited, steady as a rock. Twenty years ago, that same guy would have flashed a twenty and told