He approaches his spud gun and aims at a target. Before he can fire, though, Harold shows up and assumes that House just got dumped by Hadley, and asks if he can ask her out. He figures if she was willing to date House, she'll date anyone. I think Harold has Hadley confused with Mrs. Taub. Mrs. Taub, clearly, will date anyone. Ruby, too. House turns and aims the spud gun at Harold. "You wouldn't," Harold says.
He would, as the next time we see House, he's leaving the New York State Police station. Hadley waits for him by the car, although she brings him a soda instead of a martini. Lame. House drinks it anyway, and tells Hadley that he managed to get off with just a warning. Um, what? He's lucky he didn't kill Harold. My Wikipedia research says some spud guns can break the sound barrier. House says he was helped by the fact that the sheriff hates Harold for feeling up his daughter at the potato-mash mixer. Why would the sheriff's daughter go to that? Why would anyone? "You always get your way, don't you?" Hadley asks the guy who has to use a cane to walk. "Not always," House says; "today would've been our one-year anniversary." I guess Cuddy's off celebrating it with Wilson.
Martha walks into Nina's room after a day of exploring her home, looking for the oldest part of her hoard. At the bottom of the bedroom closet, she found baby clothes. She asks Nina what they're about.
House and Hadley are on their way back home. They get a call from the Cottages reporting that Nina has a new symptom -- infertility. Martha says Nina's hoarding began as a way to fill the void because she couldn't have kids. House says this could all be nothing, since the infertility may well be Brian's fault. Hadley has another idea, and can't help but open her mouth to say it, thus revealing her presence in House's car to all. House claims it was just the radio, but the guys recognize Hadley's voice. House says it was a "Thirteen Tribute Band," which cracked me up for some reason. Hadley decides there's no use pretending she isn't there, and starts to explain her theory before Taub interrupts to ask her where she was for the past year. House says they can talk about it when Hadley reports to work on Monday. "Monday? This Monday?" Martha squeaks, although I can't tell if she's happy to have more company at work or upset because Hadley's arrival means Martha is no longer needed and she'll be out of a job. Hadley tells them all to shut up and says when Nina said she couldn't have kids, they assumed it was because she was infertile. Maybe conception isn't her problem. She hangs up on them with that, and House happily says "the bitch is back." Yay.