At some point, the DJs decided to crank the treble up to maximum, prompting people to clutch at their ears in agony and make a mad dash for the shuttles that were bussing people to and from a casino parking lot, which served as a rendezvous point. Unfortunately, the three formerly laid back security guards were not equipped to handle a mass exodus of tired, grumpy, inebriated revelers and orderly lines dissolved into one pushing, shoving mass. People pounded on the sides of shuttles that frightened drivers refused to let anyone board. Groups stowed away in luggage compartments. It got ugly.