Unfortunately, it has become increasingly difficult to go from week to week during the NFL season without seeing some act of fan violence get uploaded to YouTube or sometimes even captured by AP photographers.
During Week 2 of the 2012 season, another incident took place in the stands of Ralph Wilson Stadium during the Buffalo Bills' home opener against the Kansas City Chiefs, according to the title of this YouTube video. Bills fans are shown fighting each other in an upper-level section of the stands. One of the fans appears to be bloodied as he is escorted away by stadium security.
Another video was uploaded to YouTube on Sunday catching Oakland Raiders fans fighting in a stadium bathroom. According to the video description, the fight took place during the "Monday Night Football" match-up between the Raiders and San Diego Chargers in O.co Coliseum that capped Week 1.
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Sadly, this wasn't even the only incident that took place during the Raiders-Chargers game. A couple of fans brawled in the stands during the second half, according to AP photographer Ben Margot, who took pictures of the fight. A video of that scuffle was also posted to YouTube.