House and Wilson chat it up as they get out of an elevator. I swear, half this show takes place in or around elevators. House sees Cuddy making her way over to them from the corner of his eye and starts telling Wilson about her "cute" tennis outfit, then says to Cuddy, "Oh my, I didn't see you there. That is so embarrassing." "How's your hooker doing?" Cuddy asks. Meanwhile, Wilson is just like "what the hell is going on?" House says that the hooker is well, and actually wanted to be a hospital administrator but couldn't stand to screw people over like that. Ha! Cuddy checks in with House about Dan, and then asks about the paternity bet she heard talk of. "That doesn't sound like me," House says. "Well, it does, actually," says Wilson. Cuddy says that the "smart money" is on the dad. The bet is made! If House wins, no clinic for a week. If Cuddy wins, House has to go to a symposium AND wear a tie. Cuddy is awesome.

More fun with lumbar punctures! Dad's not around for this one, so Cameron gets to hold Dan down, his face level with the cleavage from her low-cut top. To give him something else to focus on other than incredible pain, Chase points out how close he is to Cameron's boobs. Cameron sarcastically thanks Chase for objectifying her. "The kid's in pain," Chase says innocently. You know what's even better for distracting someone from pain? Voices in his head. Things are looking grim for old Dan as we go to commercial.

The team meets up to discuss Dan's newest horrible problems. The penicillin isn't working and Dan's brain is still degenerating. So he doesn't have neurosyphilis, which means those lumbar punctures were for nothing. This is why it's kind of important to be certain of your diagnosis before you treat it. The crew is back to square one, except now they have even less time to figure out what's wrong with Dan. The Cottages list off all possible causes -- including vasculitis, our old friend -- and why they're ruled out. House paces around the room and talks out loud about Dan's sick brain, and how it's torturing Dan. He orders a few brain tests, saying that if Dan's brain has something to say to them, they should find a way to listen to it.