Mark and Carol cast a woman's wrist. Carol notes the patient's good luck at falling down a flight of concrete stairs and doing herself no more damage than breaking her wrist, which Mark calls "one of the benefits of alcohol consumption." This gives Carol an opening to complain that, between pregnancy and breast-feeding, she can't remember the last time she had a drink; however, she delivers this line in a dreamy, zombie-like tone reminiscent of Kerri in the last scene. Mark says he'd have more trouble giving up caffeine. Carol says she's thinking of weaning the kids: "It's been six months; I'm not sure how much longer I can deal." First of all, I don't think that the best reason to stop nursing a baby is that it's a hassle for you personally. Second, isn't six months unusually young for an infant to go off breast milk? Moms in the audience, help me out. Mark apparently doesn't agree with me, and tells Carol he's amazed she's lasted this long. "You don't think I'm a terrible mother?" Carol fishes. Mark says, "If you plan on being the perfect parent, you might as well fail now, while they can't remember." Carol sighs, and he asks if she's okay. Without meeting his eyes, she murmurs, "They deserve a father, Mark." In response, Mark drops this bombshell: "Doug's been seeing them." Uh. He has? As Sars pointed out when the Not! Line was in effect, is this something that happened on the ER Desktop? The last we heard of Doug, Carol had asked to call him right after the twins were born; we didn't even see the conversation. Yes, we all live in the real world and know that George Clooney isn't going to make a five-minute appearance on the show just to play patty-cake with the kids, but really, if Doug had been around at any time between Thanksgiving and now, someone would have mentioned it in passing, and they haven't! No, this mention in passing is not sufficiently expository! Anyway, Carol tells Mark that Doug has asked her to move to Seattle again, and that she thinks he's serious this time. Mark asks what she told him, but before she can answer, Lisa appears in the doorway asking for Mark; Carol tells him to go.