Meredith shows up where Derek is waiting; he paged her, and she's totally relieved to get out of the clinic. However, she's thinking booty call, and he's thinking lunch. Seriously, I need a job where my morning break is sex with a hot neurosurgeon. I love having a Diet Coke and surfing the web, don't get me wrong, but it's just not quite as exciting. She turns him down and tells him they agreed to "S&M only." At his horrified face, she explains, "Sex and mockery!" Good thing she clarified, because otherwise he was really not living up to expectations in the bedroom. ["Not to mention that that's fan-fic we really don't need to see become canon." -- Sars] He's clearly disappointed (about lunch, you dirty minds) but she just orders him to meet her in the lobby at 8 PM and to eat dinner first.
Alex is working on Brian, but he's still shrieking uncontrollably. Dave is freaking out when he sees Alex with a needle, and continues to babble on, culminating in panicked pleas to the baby to stop crying. He finally completely yells, and Alex snaps and shouts back that Brian can't stop "because his nervous system is shot. Because his brain and his heart and his renal system are all compromised. He can't stop crying because he's in withdrawal from crystal meth, you son of a bitch." Dave is stunned, and then starts to freak out, crying that Brian wasn't in the room when they were making it, but Alex exclaims that he smelled it on his skin. Dave then begins yelling about how he's a good dad who loves his family and they just needed some money. Alex snarls, "Well, now you can love your family from jail." For his efforts, he gets a punch right in the face and is knocked out cold, allowing Dave to grab Brian and flee. Was Alex irresponsible? Yes. But was he also more than a little bit...hot, in his indignant rage? Absolutely.
Ben's in surgery and Callie is drilling into his shoulder as Izzie watches. The Chief comes in and Callie doesn't pay a ton of attention, prompting him to ask testily if she doesn't know or doesn't care what's going on. He tells her that he delegated responsibility to her, "and now one of your residents has been attacked and a baby is missing." That's a bad day at work, right there. She's taken so by surprise that she doesn't seem to comprehend what he's saying, but he orders her to finish up the surgery and that they'd better find the baby. Once he's gone, she tries to maintain her composure as Izzie watches. Finally, she offers a compliment in a squeaky little voice, telling her she thinks Callie is doing a good job and that being Chief Resident isn't easy. This is finally what it takes to get through to Newly Dumb Callie's head, and she orders Izzie out of the OR. I don't think it will surprise anyone that Izzie seems stunned that this is the reaction she gets.
Mere sews up Alex's head in the clinic, and he asks what's up with Cristina, since she's quietly circling them like a shark. Mere explains that they don't know why Mama is there, but "My guess is she's here to kill Cristina." She then tells Cristina that Lexie is hovering, so Cristina looks up long enough to order them to "go fold something." Alex, naturally, watches Lexie and vocally appreciates her hotness. Thankfully he gets paged to talk to the police before Meredith can stick those scissors in his skull. Cristina repeats that she just wants to know why Mama is at the hospital.