re: What is going to take to stop the fans from charging on to the court or field?

I agree it will be just a matter of time before someone is trampled to death and the university will be held liable.

I think loss of home games is a punishment that would get attention. Especially in football. Teams have to play back to back away games against their biggest rival would not only suck, would really hurt them more than a fine. Not just home game revenue, think about all that is involved, parking, concessions, tailgating.