Jane Burke: Did I hear you refer to Miranda Bailey as a Nazi?
Cristina: What? Oh, no. Oh, um, uh---yes. But--
Jane Burke: You do understand that the Nazi's were responsible for the worst genocide in the history of man? And a racist genocide at that. I would think that a woman of color and a doctor, no less, that you would think twice before using that word as a punch line.
Cristina: I'll think about that in the future, Mrs. Burke.
Derek (walks up): Mrs. Burke. You're Preston's mother.
Jane Burke: Yes. And you are?
Derek: Derek Shepherd. I'm the surgeon who operated on your son.
Jane Burke: Oh thank you. Brilliant surgeon and (to Cristina) a handsome man too.
Cristina (faking a smile): Mmhmm.
Jane Burke: Would you mind if I borrowed your young intern for a quick cup of coffee? (Cristina looks horrified and glaces at Derek) I'll bring her right back.
Derek: Oh, no problem. Dr. Grey can cover for Cristina.
Meredith: I'm sorry?
Cristina: Uh, Dr. Grey is very busy, she has charts to do for Dr. Bailey. (to Derek) Bailey's on the warpath. (turns back to Mrs. Burke) It's not the German warpath. More of like a hospital warpath.