You remember just fine. It was hazy, the word House used. When arguing with Wilson over whether the antidepressants made him happy or hazy. So no, this is hardly the first time we've seen House wrestle with this idea that happiness = losing his edge as a doctor.

There was another time, too. When the patient originally, as it turned out, was only suffering dehydration, but House (because he was happy about something else at the time) conceded to the parents' wishes and didn't insist upon ... it was a CAT scan or something, that would have revealed that the problem they subsequently treated for (and which treatment caused all kinds of Bad Side Effects that sent the team chasing ghosts) never existed in the first place. And House said that if he hadn't been happy that day, he'd have shot the parents down, done the damn test, and everything would have been better.