When we got to the concert, Senses Fail was about to come on. They were decent, not great. A little too screamy, even for me. Then 30 Seconds to Mars came on, with my beloved Jared Leto: 
Jared Leto = Total Hotness.
Me, Patsy, and this chick Nicole forced our way up to the very front and when the band came on we got totally crushed. We were repeatedly kicked in the heads and necks by crowd surfers, punched by people trying to get in front of us (not happening), and just basically had our air supply cut off by the massive, oppressive crush of the crowd. It was GREAT! I know it sounds like it was painful (it was) but being in the pit rules. I stayed in for about 3/4 of the show and then left because I realized that A) I was spending so much time trying to stay on my feet and not die that I wasn't sufficiently staring at Jared, and B) I was getting really sweaty and my hair was looking bad. Can't have that.
Then The Used came on. I so heart them and have never seen them before. I thought they were awesome. Our group was split on how we felt about them - some of us loved them, some of us thought they were ok, some of us thought the lead singer was too unattractive to enjoy the band. Here was the best part of their set - Bert (the lead singer) says: "Ok, we are going to try something. Let's split the crowd in half (it was all general admission so no seats)." The crowd does as Bert says, so picture about 2000 sweaty, angst-ridden kids on one side and 2000 sweaty, angst-ridden kids on the other. Then, Bert tells them to run at each other. They start playing my fave Used song and then the two sides of the crowd run directly at each other and start the biggest, meanest mosh pit evah. Of course, as soon as he split the crowd I knew what was coming so I got my too-old-for-that-kind-of-thing ass out of the way. It was awesome to watch though. 