I have a problem with it too. You have a ticket for a seat, not MY seat. True, most of the time it's no big deal. But there have been a couple times where they were jerks about it, and once when they had to move down the aisle and were whispering and looking over at us the rest of the game. Sure, just don't let it bother you. I just don't need that crap. Lambeau is even worse. Every, and I mean EVERY game I attend there are people in our seats. Some don't have their ticket, some don't even know they're at a Packer game, and I've had to go get an usher more than once. Very simple folks, sit where you're supposed to sit. Once the game gets going for a while and you can clearly see an area is empty, have at it. Oh, and don't wear another team's hat. ; )