Elsewhere, Mark is very loudly telling an elderly woman that her husband has to take his blood pressure medicine every day. Weaver crutches up to him and mutters that she feels terrible, and asks if he can cover the rest of her shift. Mark says it's no problem, adding that he can't remember her ever having taken a sick day. She thanks him, and tells him that Lisa, a new med student, is starting today. At this point, they both reach the desk, where Lisa has her hand on Dr. Dave's forehead. Weaver barks at Dr. Dave to leave Lisa alone. Dr. Dave whines, "Gimme a break, chief," and she replies, "Suck it up." Heh. She leads Lisa over to introduce her to Mark, but she remembers him from the birth of Carol's spawn. Weaver takes off, saying that she'll see them tomorrow if she doesn't die during the night. Mark clarifies that Lisa is both a med student and an OB nurse, and she explains that she still takes the occasional shift in the OB to make a little money. He very briefly explains the ER's operating procedure -- the board, nurses' orders, lab requests, the names of the various exam rooms and curtain aireas, and so on.

Mark: Wave "hi" to Yosh.
Wing Chun: "...because you won't see him in this episode again."
Sars: That probably wasn't even Gedde Watanabe.

They come to Todd's trauma room, where she orders two of morphine. They keep going out to the hall, where Carter is pushing a kid -- with the unfortunate moniker "Darnell" -- in a wheelchair. Darnell has muscular dystrophy; some kids at school pushed him down the stairs. Lisa gasps, "In your wheelchair?" Darnell brats, "Duh!" I guess this is the plotline where we learn the valuable lesson that physically challenged people aren't all saints and heroes, and that they can be dickheads too, and that unpleasant people come from all walks -- and rolls -- of life. Anyway, Darnell's arm is in a sling. Carter says that Finch has the kid who pushed Darnell, and Mark makes the brilliant suggestion that they keep the kids apart. As Carter takes off, Mark tells Lisa Carter's name.

Lisa and Mark enter, and soon exit, the pedes ER, where Finch is undoing a bandage wrapped around the pusher's hand and wrist. Pusher says that he was just trying to get to class, and that Darnell freaked out on him when Pusher tried to get past him in the hall. Finch sanctimoniously remarks that that's no reason to have pushed Darnell down the stairs, especially given that Darnell uses a wheelchair. But it would be okay to push non-wheelchair-using kids? Oh, whatever -- I don't care enough to get all worked up into a lather over that. Let's all agree that pushing people in any condition down anything is Wrong. Pusher defensively says that he didn't do it until Darnell stabbed him with a pencil.