The first Bear game I went to, the Packers scored my buddy and I jumped up, threw our fists in the air and whooped it up. As we looked back and saw the expressions on the faces looking at us we decided it was not a good idea to continue doing that. We celebrated in a much more reserved manner and had no problems. Had we continued I'm sure we would have drawn a penalty for "taughting" which would not have been 15 yards but instead a beer can in back of the head.
When in hostile territory one has to remember that. Common sense is wise.
In my experience Bear fans are much better than Viqueen fans though. I say this based on my experience, and watching the the interaction between Packer fans and Bear or Viking fans.
Why is Jerry Kramer not in the Hall of Fame?