When I was much younger, I worked part time at a meat market. It was individually owned, and the owner taught me how to cut, among other things, over time. Even though it was a "meat market", this place also served lunch, and was famous around 3 towns for it's burgers. The burgers were humongous, and he always had a deal "Buy one cheesburger/Get One Free". I myself used to buy and eat these things......Until, he taught me how to prepare the meat he cooked for the burgers. The "hamurgers" were literally nothing but the fat trimmings from the meats. When I say literally, I mean 99% I/we would trim all of the meats throughout the day, save all of the fat in very large drums, and then either freeze it, or grind it up later that night. We put 5 pounds of regular ground beef, mixed in with each large container of fat trimmings we grinded, and once it is cooked, you cant even tell the difference.So actually the signs and adds in the paper should of always read " Buy one Fat~burger, get one Fat~burger free"!