If you've ever been to Coachella or Bonnaroo, there's a good chance that you've been surrounded by every stripe of party-goer.

Booze, pills, literal swimming pools of molly abound at most outdoor festivals. Which is great, if that's your thing, whatever floats your boat. But that also means masses of people bumbling into one another while trying to find the closest port-a-potty. It also means plenty of opportunities to allow these besotted masses to provide even more entertainment than the bands on stage. We rubbed elbows up with the wastoids on the street at this year's Treasure Island Music Festival in San Francisco so you didn't have to. Enjoy.