but encountering such behavior was not hard to predict when sitting among opposing fans, some fueled by alcohol, at a rivalry game with high stakes. If you really think it was a savvy parenting decision please explain.

My experience at RES this weekend was far tamer than last time but still included being told F-BYU, Go home Mormons, etc. You cannot go into that environment without encountering hostility and idiots. I don't see how anyone could be surprised by it.