Apples and oranges, Spook. Obviously none of the partiers were armed, none of the shop owners were armed or even present. Should they have been there defending their shop by waving a gun around, the police would have dealt with THEM instead.
The events that took place were done mostly by out of towners and not UW Madison students. Like the article said, some of them came from as far as New York and Indiana just to party here. It was an unfortunate incident. Why not ban bars? Sound good Spook? Ahh, hell, go further and ban alcohol.. oh wait, been there done that.