From OregonLive on the 2012 Oregon vs Washington game:

"University of Oregon officials say 82 people were ejected from Autzen Stadium during last Saturday's win over Washington. The authorities ejected 60 spectators for alcohol-related reasons and 12 for unauthorized entry into the game. The others were removed for a variety of reasons, including public urination, a drug violation, fighting, disorderly conduct and misuse of a ticket.
The number of ejections fell from the 129 (???) that occurred in the previous home game against Arizona." Clearly, there is no shortage of boorish behavior on the other side of the river...