I always feel like I must be in a completely different stadium than everyone else when I read these threads.
It varies widely. I was working concessions at WIU and I was shocked at how few drunk people there were (I was near the NW corner of the stadium, where I have never sat before). Some of the other people I was working with in other sections of JTS were shocked at how many drunk crazy people there were.
Sadly I don't have any fun quotes...except two of the girls I drove up to Ames from DSM had never heard of tailgating before and were surprised by it all. If we had walked through the student tailgate section their heads probably would have exploded.