LAS VEGAS — Strippers work three shifts at the Palomino Club: the 5, the 8 and the 10 p.m. New girls tend to work the 5, which means they sometimes sit around an empty club for hours, playing video games, buying themselves $11 whiskeys or $8 rum and Cokes, clicking up to the stage in high heels for a two-song show and getting naked for nobody but the D.J., a few other lonely strippers and their own reflections on the mirrored walls. The best shift is the 8. The club might be filling up by then, promising dancers the most...