Columbus. I was a graduate student at OSU at the time and love the Buckeyes, but not nearly as much as the Cougars, so I had no hatred for Michigan when they came to town (it's hard to hate a team in blue and it is sometimes weird to like a team in red, especially when I put on my Ted Ginn Jr. jersey for OSU games).
There were some Michigan fans that were entering the stadium and I just said "good luck" today. One lady was really surprised and thanked me for being nice to them. I think it may be ugly in other parts of the stadium, but I was sitting in the nose bleeds.