Here’s someone else to blame for why you got blackout drunk last night: the D.J. That’s because these spinning whiz kids purposefully play a crap track so clubgoers will abandon the dance floor and hit the bar, driving drink sales. Because really, who’s going to stick around for “Castles In The Sky”? (Trick question: Too many people do.) Profit motives are also why venues raise temperatures (or simply refuse to put on the air conditioning) and the volume inside these dens of sin — all to push you toward the bar. But let’s not pretend you didn’t know their dirty tricks: You think hot bartenders get hired for, what, your health?