http://www.cnn.com/2009/US/03/17/lippert.qanda/index.html#cnnSTCTextRoberts: So, in terms of paying for something, if somebody gets a sandwich or maybe a bowl of soup or something like that, typically how close to the old menu price would they get in what they pay?
Lippert: Well, sometimes people shoot a few dollars over, and sometimes it's a few dollars under. And, you know, at the end of the day, it works out for me. ... It works out even.
Roberts: Yes, so, does anybody try to game the system? You know, they'll get a big meal that would be worth $10, $12 and then give you 50 cents for it?
Lippert: Well, you know, they have to look me in the eye and say that that's what they think is fair. And, you know, that's a big incentive. When someone's at the counter and you say, you get to pay what you think is fair, very few people are going to take advantage of that situation.