House returns home, where he sits around taking Vicodin until his phone rings. He doesn't answer it, but the damage is done. Wilson was calling House from just outside his front door and heard the phone ringing inside, so he knows House is in there. House lets him in. Wilson asks if House is doing okay after his lunch with Cuddy. House clearly isn't, so Wilson offers to take him out for a drink. In the middle of the day. Knowing that House has taken like a week's supply of Vicodin today. Great plan, Wilson. House limps to his bathroom and grabs a woman's hairbrush off the shelf where he knew it would be. He agrees to go to the bar if they can stop at Cuddy's first so he can drop her brush off.
In what is becoming a pattern of terrible decisions, Wilson decided they should take House's car to the bar and that House should drive. Even though, again, he is high on Vicodin and will probably get totally wasted at the bar on top of that. And, I would assume, Wilson had to drive his own car to House's apartment so why not just let Wilson drive his own car? It's like Wilson went out of his way to make this terrible idea happen. House pulls up in front of Cuddy's house and tells Wilson to stay in the car. He walks towards the house, then stops short. Cuddy has company. Julia and her husband are having coffee in Cuddy's dining room with Cuddy and Jerry. Yes, there's no better first date than coffee at someone's house with her sister and her sister's husband. That makes sense. They get up to leave the room, with no one apparently noticing the man standing in the front yard like fifteen feet away from the large window. Cuddy touches Jerry's shoulder. House decides not to return the hairbrush after all.
He turns around and walks back to the car. Wilson asks what's going on. "Get out," House says. Wilson again asks what's going on. "Get out," House repeats. Wilson obeys, leaving House with "what are you mad about? Just let it out. You'll feel better." House closes the car door and screeches away, leaving Wilson on the sidewalk figuring he should call for a cab. Well, that's what you get for letting House drive. House speeds away, then, suddenly, does a screechy U-turn in the middle of the road. The anger on his face changes into determination, and he speeds back towards Cuddy's house. Like, seriously towards Cuddy's house. As in, Wilson jumps out of the way (and manages to hurt his arm when he lands. Klutz!) as the car pulls up on the sidewalk, over the front lawn, and rams into Cuddy's dining room. Her walls are made out of paper, so the car easily passes through them and comes to a rest almost entirely in the dining room. Fortunately for pretty much everyone involved, no one was in the dining room at the time. They're all standing just outside it, staring at the uninvited guest in shock and horror.