game. Drinking (by both parties) makes things infinitely worse. I've been the visiting fan in several stadiums and never engage. Just had to break up a fight between some drunk Ravens fans who got in my buddy's face after the Pats/Ravens game last month. Thankfully it was just pushing and shoving but my buddy was minding his own business and just walking to the car.
That said, if you're moderately famous/recognizable, get a suite or sit in the Club Level. Don't sit with the Chowdahs.