Kumar goes over the treatment with Roz. Yonatan is there and wonders how a hair test for drug toxins could show that Roz has a rare genetic disease. Kumar explains that the porphyria is a guess and they're treating her to confirm it. "You're treating it before you confirm it?" Yonatan asks. I guess House, like the rest of television, is considered too trivial for Hasidic Jews to watch. Otherwise, Yonatan would know that House throws medicine at his patients in hopes that something will work. Nothing ever does. Kumar says they don't want to wait twenty-four hours for the lab results to come back. Yonatan wants to know what made them suspect porphyria. This puts Kumar in a difficult position. He says House has a theory. "A theory based on what?" Roz asks.

I guess Kumar couldn't think quickly on his feet, as we cut to Yonatan ordering Cuddy to assign them a different doctor. He says he'd rather have PPTH's second-best doctor than one who thinks being religious is a symptom of mental illness. House is unconcerned about Yonatan's complaints, simply asking Cuddy if she knew about Wilson and CTB. Cuddy ignores him. House tells Yonatan that if he can follow all six hundred and thirteen commandments (damn, Jews have it six hundred and three times harder than Christians), not understanding them all but trusting that they were issued by someone who knows better, he can certainly follow House's advice. For "in this temple, I am Doctor Yahweh," House says, insulting Yonatan all the more by speaking God's name. "I want a new doctor," Yonatan says, and he leaves. Cuddy orders House to treat Roz for cryoglubulinemia, one of Taub's earlier suggestions than House threw out since it didn't explain Roz's altered mental state, which he's still holding onto as a symptom. "People don't change," House repeats. Cuddy is sure they can, and tells House that changing your life because you're unhappy is a sign of mental health, not the opposite. She's about to insult House when his beeper goes off.