What if a fan, drunk or sober, decides to climb up on the edge of the upper deck in the stadium and then falls to their death? Who's at fault? The idiot climbing up on the edge or the University for not making it impossible for them to do so?
What if someone, drunk or sober, decides to try and climb one of the thousands of trees on campus, but then falls out and breaks a limb...or their neck? Who's at fault? The idiot for climbing the trees or the University for having trees on their property?
What if one of the many convenience stores gets robbed and the clerk gets shot? Who's at fault? The robber/shooter or the University for allowing it to happen by having a target for robbers on their property?
Drunk people do stupid shit all the time. Hell, sober people do stupid shit all the time. You can't appease everyone and you can't keep everyone safe. It's just not possible. And you can't live in fear that someone will get hurt. Someone will always get hurt.
If someone trespasses on my property and decides to climb one of my trees and they fall and get seriously hurt, who's fault is it? Is it theirs since they were trespassing in the first place? Or is it mine for having trees on my own property.