Recently, some branches of Donut Shop, Inc., have dropped the practice of allowing employees to accept tips. Customers who once said, "Keep the change," now have to get used to waiting for their nickels. Management even instituted a policy of requiring that the change be thrown out if a customer drives off without it. As a frequent customer who gets coffee and doughnuts for the office, you notice that the lines are longer and that more mistakes are being made in your order. Explain why tips could be viewed as similar to stock options and why the delays and incorrect orders could represent a case of agency costs. If tips are gone forever, how could Donut Shop reduce these agency costs?