*The line for alcohol at Coachella seems inordinately long. As you wait in line, the sun beats down on your head, sending sweat rolling down your forehead and your back. Sighing, you look longingly at the ice on display, dreaming of gulping down a nice cold beer.* "Hey," *says a voice, bright and cheery. You turn. By your side is a girl, mischievous hazel eyes peeking out from under her baseball cap.* "Do you mind doing me a favor? Can you please buy me a beer? Promise I'll pay you back!"