Outside the room, Bailey gives them all hell for being such sex-starved poor excuses for doctors. She tells Meredith that, if she can keep her clothes on long enough to follow up the labs, she'd appreciate it. Alex gets the pit, which pleases him since it means he's off "gyney." She starts to say something else, then looks over at something behind them. "Or...you can tell me...whose DAMN PANTIES are on THE BULLETIN BOARD!" Oh shit! The interns look over at the black lacy panties pinned to the board, and some of them cringe. Others cannot control their laughter. Meanwhile, Bailey lectures them that the hospital is a serious place where serious work happens. She asks whose they are. Callie looks over from the nurses' station and starts to giggle. Meredith tells Cristina under her breath, "This is bad. This isn't good." Cristina tells her she better claim them. "She thinks they're mine. Claim them!" Bailey catches them freaking out, and says she knew it was one of them. "It's ALWAYS one of mine. Always. So...tell me. Which one of you left your damn DRAWERS ON MY SURGICAL FLOOR?" No one says anything. Just when it's too unbearably tense to handle, Callie rolls her eyes and walks over. "Oh, no. Did I leave my underwear lying around again? I am so sorry, Bailey." She unpins the panties and slips them into her pocket. Then she walks off, all cool, like she leaves her black panties on hospital bulletin boards every day. Credits.

Bailey tries again when we come back: she tells George and Cristina to prep their patient for surgery. "Karev, pit. Grey, charts." She tells them not to make her regret setting them loose in the hospital, and quizzes George on what she means by that. George: "You mean check with you before we cut any wires or steal any hearts." Heh. Bailey gives George a look, then tells him he better not be trying to be clever. Damn, she is back. And Cristina says so: "Holy crap. The Nazi is definitely back." As she's saying this, she runs into Burke's mother. Cristina stutters around for a minute, then Burke's mom is all, "Did I hear you refer to Miranda Bailey as a Nazi?" She gives Cristina a lecture on who the Nazis actually were, and expects that Cristina -- as a woman of color, and a doctor, no less -- would think twice before using that word as a punchline. Cristina says she'll think about that in the future. McDreamy is passing by just then and is so pleased to meet "Preston's mother." She thanks McDreamy for operating on her son, then asks if she could borrow Cristina for a quick cup of coffee. McDreamy, to Cristina's extreme dismay, says that'd be no problem, no problem at all! Cristina attempts not to freak out and says she just has one quick thing to do, then she'll meet Mother Burke in the cafeteria. Awesome Diahann Carroll drawls, "Yes, yes. I look forward to it." She says it in the way that lots of Southern women do when they say, "Bless your heart," when what they actually mean is, "Fuck you. Honey."