Kumar starts trying to incorporate the bypass into his next diagnosis, but House tells them to ignore the bypass and diagnose Emmy as if she's still fat. Taub doesn't understand why, but House says she may not be fat on the outside anymore, but they don't know about the inside. Kumar takes the hint and says perhaps Emmy had Type 2 diabetes when she was obese, and that's left her with some permanent nerve damage. House says that's stupid -- that kind of nerve damage would have started a long time ago. With that, he turns to Cuddy asks her for his balls. Loudly, and hoping it'll have some effect on whatever business she's trying to conduct on the phone. It does, as Cuddy denies that House is bothering her while looking through her handbag for her cell phone, on which she'll call whoever she's talking to back. She does, telling him or her, "I just had to explain to him that I had his balls and he's not getting them back." I think that round goes to Cuddy. Kumar goes for a sleep apnea diagnosis. Emmy had it when she was overweight, and it could have permanently destroyed the musculature of her trachea, causing neurological damage from a lack of oxygen to the brain. Emmy has no symptoms of sleep apnea, such as snoring or fatigue, so House says the diagnosis is wrong. Also, he doesn't want to do the differential in his tiny office now that Cuddy's not in there to piss off.
Where does he go instead? Hadley's clinical trial. Yes, he will pester you even if you have a tragic terminal illness. Hell, he'll pester you because of it. Hadley looks visibly uncomfortable, but House doesn't care. He gives Foreman and Hadley a quick rundown of the case and solicits diagnoses. He won't get one from Foreman, who's annoyed that House would violate the sanctity of this private, closed trial even though Foreman has worked for House long enough that this behavior shouldn't be a surprise. Hadley doesn't miss a beat, suggesting a side effect from the bypass surgery. House tells her to go on, pissing off Kumar, who was shut down for trying to suggest a bypass-related diagnosis just a few minutes ago. Hadley says Emmy could have problems absorbing nutrients and be suffering from low potassium. "Very stupid!" House says. Maybe not, since it's given Kumar an idea. The bypass could have created some nasty-sounded bowel loop that ulcerated during exercise. House orders Kumar and Taub to test Emmy's poop for bacteria to prove this. But ... wouldn't that cause pain? I'm pretty sure that when things ulcerate, they hurt. Foreman angrily says that House didn't need him or Hadley for that diagnosis, but House points out that Hadley's wrong diagnosis was what to Kumar's possibly correct one. Hey, he's just trying to make Hadley feel important and needed. In his own way.