I have only been to about 12 games at LES, and I have seen at least one incident worse than ever before. See earlier post about BYU student shooting 10-12 year old kid in the head with a paintball gun.
My point is that pointing the finger is stupid. 99% of Utah and BYU fans could easily watch a game together. But there are just as many unbearable BYU fans as unbearable Utah fans.