House squinted at Foreman, cocking his head to the side. Foreman seemed so sure, so pleased with himself and the belief that he could call House's bluffs. House wondered what Foreman's reaction really would be if he decided not to bluff. Maybe Foreman wouldn't be so quick to shoot down what he said then, if he actually followed through this time. The idea was ridiculous, and it made House a little nervous, but he wanted to prove Foreman wrong. He could embarrass him after that, piss him off with extra ease because he'd be feeling extra-smug about making Foreman eat his words.

House was about to reply, but stopped when the doors opened, and a woman stepped onto the elevator. She had a strange, uncomfortable smile on her face. Foreman wasn't looking at him, as if he didn't want to be acquainted with him, or he was trying to tell him to shut the hell up just with his brainwaves. They were both about to get more uncomfortable. House leaned back against the elevator, letting his slight grin sneak into his voice. "You know I've taken the opportunity to rise to a challenge literally before," House said, not bothering to step closer to Foreman or lower his voice.