We were at $1 beer night in Omaha. The Creighton crowd was all smiles and jovial when the Jays jumped out to a 16 point lead. But, when the Huskies came back to tie, they got ugly. Really ugly. My wife (UConn class of '78) wasn't too pleased. Almost got into it with a few of Omaha's finest (Creighton assessment of their local alumni base). I had to remind her that it's Creighton, not University of Nebraska, whose fan base is famous for being nice. They even applaud the opposing team that's just beaten them when they walk off the court/field. But, I think we'll pass on $1 beer nights from now on.
This makes me want to take the thread off the rails on ponder: which fan bases have you encountered that were generally cool.
Delaware football fans take the cake for me. I was down there when North Dakota State played there and me and my in-laws (a group of eight of us) were all decked out in NDSU gear.
Whether it was tailgate, in-game, or post-game, fans either ignored us completely or went out of their way to talk to us in a fun, bonding type of way.
More on subject, I've seen UConn games in Newark about a half-dozen times and I've never had an issue there. Seton Hall fans, to me, seem generally super knowledgeable, supportive and passionate, but aren't looking for trouble. Oh, Indiana fans at MSG this year seemed cool too.