Its the knucklehead few of every side that ruin it for the greater. We have a place in Hayward and its a big mix of pack, vikes and bears fans. Never had an issue but good ribbing. We were up in Mercer for the Bears/Pack playoff game and plenty of trash talking but we all laughed and shook hands after the game. If you get some idiot who takes it too far (i dont care if its sports, politics, religion) just remember, they are probably losers with too much time on their hands who actually believe the folks who they are rooting for actually care about them.... why waste your time on them.