"I get the ones that no one else can solve," said House, not even noticing that he hadn't used the past tense. "It's only interesting if I don't know the answer right away. And if I don't know the answer right away then you can bet no one else could solve it."

He was thoughtful for a second, then ticked some off. "Well, there was that nun with who was allergic to the cooper in her IUD. The woman with African sleeping sickness. The professor with lead paint poisoning who didn't even know he was sick, oh and..." A smile twitched at his lips. "When Jack and I were back in Princeton during a coma holiday, I discovered that a woman was poisoning her husband with gold."