I only went to one, 14 in philly. Had some gopher fans nearby and the only interaction was shortly after a very loud fan yelled "somebody hit someone, I paid a lot of money to see this", I told my wife that "neither of these teams is going have much for Union" and the gopher fan gave me a look, meh. Now I had more interaction as a student and those memories are heavily discounted by old age and alcohol, but I assume I was an ass...