Cristina finds Burke, and asks if he paged her. Burke says coldly that he didn't see a psych consult scheduled for Justin. Cristina says she tried, but couldn't get one until January. Burke: "You disrespected me. You mocked me in my OR. That can't happen." Cristina nearly starts to argue, then checks herself and says it won't happen again. Burke can't believe she equated his spirituality with a belief in Santa Claus. Cristina says science is the one thing they have in common. "I'm an intern, and you're not. I'm a slob, and you're not. I say I want to keep our relationship private, and you go and tell the chief...and then you ask me to move in with you, and now you're religious? I don't know what we're doing." I'll say. Burke says that, right now, they're working, and to page him if Justin spikes a fever. And, he adds, tell Justin's mom to hire a therapist -- or a priest -- anyone Justin will talk to. He storms off, and Cristina sighs heavily for about the hundredth time this week.

Izzie tells Tim's husband and kids that he's going to be fine, and is just now waking up from surgery. They all troop into the room, and the kids immediately begin their adorable kid routine. One of them says she'll "kiss it better," and another starts singing a Christmas song. Tim, however, is not as into it this time around. Dramatic music starts to play as Tim bellows, "Damn it, Leah, SHUT UP! I can't stand that INSIPID SONG!" Oh, wow. Daddy's mad. The kids all grab onto Tim's wife as he yells at all of them to get out, get the hell out, all of them! One of the kids yells at McDreamy, "You stupid shepherd! You broke my daddy's brain!" Or...fixed it? You decide. Commercials.

When we come back, McDreamy is telling Izzie to page him and get a CT if Tim doesn't improve in a couple of hours. Izzie actually tries to tell McDreamy that maybe his anti-holiday venom poisoned Tim's brain on some unconscious level. "I mean, he trusted you to be his...shepherd!" Oh, Izzie. McDreamy: "Dr. Stevens, you should be a little embarrassed." Izzie: "I am." McDreamy: "Good." God help us all.

Justin's mom is putting up a little Christmas tree in his room, when Cristina walks in and tells her that's not allowed in the CCU. Mom brushes it off: "Oh, that's never really been enforced." Cristina rolls her eyes, and says the surgery went smoothly, but it's too soon to tell how Justin's really doing. Mom pulls some paper snowflakes out of a box as Cristina checks Justin's vitals, and says he's really a good boy, but he's been down at this difficult time. "But Father Mike will be able to talk to him," she smiles. Aw, Mom. Cristina says no offense, but Justin doesn't seem to be a fan of the holidays, and doesn't believe in Santa. Mom says yes, well, a mother's job is to protect her child's innocence. "This Christmas could be his last time." Unbeknownst to Mom, Justin has woken up. He croaks, "That's what you said last year. And the Christmas before that." Oops. Mom goes over to hug him, and tells him he's her big strong boy. "Santa brought you back to me!" Cristina can't take it anymore; she jerks the Christmas lights out of the wall and starts wheeling the tree out. "Sorry. CCU regulations." I know, I know, Mom is out of control. Still: heartless!