"We're safe now," says Rousseau. Kate wants to know what that thing was. "Security system," says Rousseau. "'Security system.' What does that mean?" says Jack, and Rousseau explains that a security system protects something, like, I don't think he was asking for the definition of security system, here. "Protect what?" asks Kate, and Rousseau says, "The island," looks at Kate like she's an idiot, and strolls off. Kate and Jack exchange looks. I love how no one questions Rousseau very much. She gives these cryptic answers, and everyone just gives up. They're called follow-up questions, you nimwits.

So our ragtag band of adventurers meets up again, and Hurley asks where Art is. "It's Arse, you idiot," says Arse, as he stumbles out of the bushes, like he was hiding from Lostzilla, but being calling Art was too much for him to bear. "Dude, I thought you were dead," says Hurley mildly. And Arse snaps that they should go after the dynamite. I guess now that he's in danger of being eaten, he's in favour of the "safety in numbers" philosophy.

Shannon's on the beach, doing whatever. Packing or something. And speaking of characters we thought were dead: there's Vincent, with Walt! "Why are you folding clothes?" he asks. "Because I'm anal," she says. Oh god, oh god, don't set me up so easily like that, Shannon. She can't even be nice to Walt: "Is there something you want?" Walt looks at his dog. "I think you should take Vincent." She looks at him, and asks if he's serious. "He'll take care of you," says Walt. Aw. Shannon crouches down and pets Vincent, who's such a good boy. Isn't hims? Yes he is! He's almost as pretty a dog as my dog, who -- and you'll never believe how lucky I am -- happens to be the prettiest, smartest dog ever. I so lucked out. Shannon smilingly asks why Walt thinks she needs Vincent to look after her. Walt explains that after his mom died, Vincent looked after him, when no one would talk to him about it and pretended nothing had happened. "So I talked to Vincent. He's a good listener. You can talk to him about Boone if you want." Oh yeah, there go my heartstrings. Shannon starts to lose it, but she musters out an, "All right. But only if you get us rescued, okay?" Walt looks concerned, like maybe he doesn't want her looking after Vincent if she's going to lose her shit like this.