Sayid's getting his stuff together on the beach when Sun and Jin stroll up. Sayid apologizes if he was confusing before, but he only wanted Jin to accompany him (as if Sayid doesn't speak the best English on the island). Sun points out that they need a translator, and at least two people who know how to sail. Sayid says Desmond managed to do it by himself. Yeah, "managed" so well that he crashed on Mystery Friggin' Island TWICE, is the gist of what Sun says, and she will brook no more argument. Jin looks at Sayid and gives him a, "believe me, dude, I already tried. Women -- whaddaya gonna go?" shrug, and they get into the raft to head out to the Elizabeth.
Elsewhere on the beach, Claire prepares to shoot her baby with the pneumatic injector containing the vaccine she KNOWS ABSOLUTELY NOTHING ABOUT. Fortunately (somewhat), Desmond is drinking nearby, and he takes a break from his alcoholism long enough to tell her not to waste her time with the vaccine, as he shot himself with it every nine days for three years. Doesn't that require further explanation? Like proof that the vaccine didn't do anything? Because as far as I can tell, Desmond is actually alive, so wouldn't that maybe make Claire think even more that the vaccine is a good idea?
Even if she wanted to ask anything, she's preempted by Desmond staggering over and telling her that Aaron is "lovely" and then not-very-subtly asking if the father is on the island. Claire explains that the father walked off, and Desmond, playing devil's advocate for some reason for the absentee baby-daddy of the beautiful blond woman he's hitting on, suggests that maybe the guy knew he wouldn't be a good father and was doing what he thought best for her. "He was doing what was best for him," she snaps. Desmond thinks about this and hopefully is realizing that maybe his situation isn't really comparable to some skid cutting out on his girlfriend and their future child.