Thus, one thing learned was that there are irrational people that choose to let a game mean more than the sanctity of life. It is understandable that both sets of fans would have increased frustration, as their teams represent arguably the two worst franchises in the NFL over the last eight seasons.
San Francisco has 49 wins over that span, and Oakland has 37. Only the Cleveland Browns (43) and Detroit Lions (34) have also failed to reach 50, but the Browns have a winning season in there that neither Bay Area team can boast.
If anything, this should give fans of both teams empathy for one another. Instead, the rivalry has gotten so bad it endangers neighbours for a game that does not even matter.
But an examination of the culture of violence behind it is more appropriate for a forum on society, not a sports blog. Here we can take a look at what the game itself told us about the teams involved...