Yep, UAL has had success before in gaining compensation for "air rage".
Here's the infamous case of Gerald Finneran wiping his bottom with the first class linens, also ordered to pay compensation:
http://www.thesmokinggun.com/altitude/monday1.html
And another one from the "I'm Irish, I can drink" department:
http://www.thesmokinggun.com/archive/usbooze1.shtml