Claire Williams, 24, appeared to be with two rejects, her advertising colleagues Dave Jones, 23 and Sean Kerrigan, 24. "We're all friends now," she explained hastily. "Dave and I got together over too many drinks at the Zac Bar in July. It was very casual. I got the e-mail invitation for tonight, and didn't tell him the story, but it's cool. We all thought, 'Great idea, a bar full of single people'." Sean was rather more indignant. "She's double ditching!" he hissed.