What's make it even worse is that these are members of the same fanbase fighting each other.
You know, the Texans were known for having one of the best tailgates in all of the NFL until their idiotic fanbase ruined it. When the Cowboys came in 2010 I guess they were so mad at the loss that Texans fans fought themselves in the parking lot afterwards.
After that, they made it to where you couldn't buy passes just to tailgate and could only get in with a game ticket.
I don't go to Texans games so it doesn't matter to me none, but it's another example of just how stupid the average sports fan is and how they make attending these events unappealing.