Now that I have more time on my hands:
I was a volunteer for WORS (Wisconsin Off Road Series) mountain bike racing. I was originally stationed in the registration booths, but I got irritated with the music they were playing on the course. I swapped places with the person, went to my car and grabbed my CD case. Now keep in mind, this place is filled with Spandex and Business Suits.
I decided that I should put in the Reign in Blood album. Of course I flip it to track 9 (on the special edition being Raining Blood). The thunder blasted, I turned up the volume. Some people asked if it was raining, cause it was kind of cloudy. Then the drums kicked in "Dun, dun dun..." then back to rain. Again "Dun, dun, dun..."
One of the Sponsors CEOs looks at me and yells "SLAYER!" He rips off his suit, which I would guess it being semi expensive chanting "SLAYER! SLAYER!" He got shirtless and had a huge Slayer Tattoo across his back. More and more people started tearing off their shirts revealing Slayer tattoos. All in all there were about 20 people. They all, including my friend and I, got onto the course, started moshing and singing along and playing the air guitar.
All in all, it was a f***ing riot. Easily one of my best memories and life experiences. It still makes me laugh that all of those people had a Slayer tattoo or something related.