What do serpentine lines, heat exhaustion, smelly hippies, EMTs, the haze of pot smoke, drunk misanthropes and hefty ticket prices have in common? They’re at a summer festival near you. Bonnaroo, Coachella, Langerado, Outside Lands, Pitchfork, Lollapalooza — doesn’t matter. Where there’s a throng of musos, self-inflicted cliffhanger moments are practically guaranteed. Do’s and don’ts […]