Look out, Cristina. That hunky Major Owen Hunt is back, but what’s this? He’s out of the Army and he’s the new chief of trauma at Seattle Grace! But the potential for romance dies quickly when Maj…ahem, we mean Dr. Hunt presents the residents with a live, anesthetized pig for each of them, and then promptly stabs each one in the chest. (We all agree it’s pretty brutal: Many, many of you chimed in about this scene on our Grey’s message boards.) What’s he got against pigs anyway? He tells the residents it’s up to them and their interns to keep those pigs alive. Izzie, as appalled as you’d expect, bails on the whole thing, not wanting to be a part of what she considers to be a cruel experiment. That doesn’t get Izzie away from Hunt, though. She has to work with him the rest of the day while he points out all of the medical advances that were made thanks to animal research, but Izzie’s not swayed at all.