Looking at the concession stands menu, one item stands out to you, a burger called the Mystery Meat Burger. Your in the mood for a burger, but that name sounds pretty strange. "Hey, what's on that burger?" You ask the man at the stand. He looks up. He is a bearded middle aged man, likley in his late 40's or early 50's, with grey hair and a large gut. "The standard fare he replies, onions, pickles, mustard, ketchup and our special meat patty. You want one? First ones free." You're suprised by his offer. You were skeptical about buying the sandwich before, but you figure if it's free, might as well get it. "Sure, why not" you reply. "Perfect," he says, he quickly fixes up a burger for you and hands it to you. Just looking at it you can tell it's cheap, it's very shoddily but together with way to much mustard and ketchup, and a nasty looking patty. But against your better judgement, you take a big bite. It tastes awful, easily the worst burger you've ever had. You swallow your bite and toss the rest into the trash without hesitation. You walk up to the stand to complain, but just before you can open your mouth to speak, you feel a sharp pain in your stomach. You double over in pain. You feel strange like your body is changing somehow. "What was in that burger!?!?" You manage to shout to the man. You watch as he smiles and opens his mouth to reply.