Derek has called Mark to the office to give him a talking-to, just like a bad student being called to the principal's office. He tells Mark he knows that he is upset Sloan left but that screwing drug reps won't help, and despite Mark's assertion that it does, Derek lays down the law that there is to be no more drug rep screwing in the hospital. Mark gripes that he's no fun now that he's Chief, and then takes his leave as the former Chief arrives. Derek asks him how his first day is going and Richard says so far it's fine before placing a cup with his urine sample down on the desk. Oh, ouch. Derek genuinely tells him that he's sorry for this, but Richard knows it's part of the rehab program and seems more interested in being done with it, asking Derek just to run the test under an anonymous name. Derek asks what he needs and Richard suggests a low-stress day with routine surgery that puts him home by 5 pm. Derek agrees and they shake hands but since we've all seen TV before, we know that's a handshake that will only insure that things run totally out of control before long.
Cristina is being nothing but gracious and helpful with the hospital lawyer... except totally not, because she's Cristina, and she just wants to get away and go to work. She decides they are finished as Avery accompanies an older man being wheeled in by paramedics. It took me a while to place the guy -- the voice was familiar but by sight I couldn't figure it out (and imdb is totally dropping the ball lately, not updating guest stars until well after the episodes air) but eventually I realized the actor is Chelcie Ross and I know him from his recent AWESOME turn as Conrad Hilton on Mad Men. He passed out while they were in a restaurant but thinks it's a waste to be there, even though he has abdominal pain. Cristina runs to his bedside and despite Avery's protests starts to examine him, treating him pretty much like a dumb old man. She's surprised to learn that this is Avery's grandfather but uses it as an excuse to continue the exam, since he is family, and suggests that it might be hurtyabdomenitis. Grandpa asks her if she's sure since he only has one symptom of the disease, and she's taken aback to realize he's a doctor, and downright speechless when he introduces himself as Harper Avery, of the oft-mentioned Harper Avery Award. Harper tells Jackson (it's going to get way too confusing to keep up my normal moniker of "Avery" this hour) to get him a new and better surgeon while Cristina stands in a panicked stupor from just misdiagnosing one of the top surgeons in the nation, who happens to be her co-worker's grandfather.