"I don't fucking know, all right?" Dean slammed a fist down on a table, hard enough to make it jump several inches. He recovered quickly, and had the sense to look shamed, if not ashamed. "We survive because that's what we're programmed to do. We were doing just fine, Jo, and now all of a sudden everything's turned upside down and I don't know what the new rules are, all right? I don't know!"