9:09 PM. Nathan -- who is having a lot more trouble walking and standing steadily than he was earlier -- tells a young patient that he can go home. As Nathan walks away, the young patient loudly asks his dad what's wrong with Nathan, and the dad says that they'll talk about it later. Abby -- who has changed into sneakers instead of pumps -- overhears the exchange. She follows Nathan, and finds him sitting on a bench, jerking and listing sideways. She asks if he needs anything, and he tells her that "the robot" can go home. I have to assume he's referring to a patient's Halloween costume, unless they are actually treating a robot, which would be kind of cool. Abby offers to get him a cup of coffee, and he quickly declines, but then adds that he likes her costume because it's "retro." Abby thanks him, and then says if he ever needs anything...she lets the offer hang there. Nathan quips, "Like a straitjacket?" Abby chuckles, and then asks if his dyskinesia is usually this bad. Nathan says that he doesn't want to freeze up at work, so he ups the medication, and then the dyskinesia gets worse. He adds that it dispels the myth. Abby looks at him questioningly and he adds, "We don't all have rhythm." I understand the intent of joking about his situation from a storyline standpoint, but couldn't they have made Nathan a little funnier? ER needs a script doctor. Stat! Abby says that if she were in Nathan's shoes, she would go on a world cruise, not go to med school. Nathan stands up and walks with Abby down the hallway as he says that he's already seen the world; he was in Italy when he first noticed the symptoms of his disease, but he thought it was from "living on espresso and martinis." Abby asks how he found out that wasn't the case. Nathan says he hated doctors, so it took a while for him to find out, but that once he was diagnosed, it put things in perspective. Abby says that being sick does that. They both stop as they reach the Simone's room. Nathan says that Simone's baby isn't doing well, and Abby confirms it.