I just wrote the other day how San Francisco Giants games have become hard to watch, so it's not a huge surprise to see that the fans have taken to entertaining themselves. The above video was filmed on Friday evening during a Giants vs. Dodgers game and presumably these guys are not all backing the same team. Props to the security at AT&T Park for getting on top of this ruckus after... umm... 5 minutes? Also, I'm pretty sure that wasting an $8 cup of beer in a fight is poor management of one's personal finances.