Actually, for the OP, he's advocating the exact opposite course of action than he should be taking...
Obviously, Pizza Hut fired the 6 idiots. Unless those 6 idiots get jail time, they will most likely be working for some other restaurant chain. Hence, Pizza Hut is now safe... but there are 6 other restaurants out there that will soon be hiring employees who do crap like that. (pun intended.) In my experience, in areas where there's a lot of turnover, companies of that caliber (low-end restaurants) can't be bothered to check work references. Furthermore, after rounds of lawsuits nationwide, most people on the receiving end of business reference calls can only say about 3 sentences: "Yes, he worked her." "He was fired." Most companies have policies preventing them from divulging more information to minimize their risk of an angry former employee tossing a lawsuit in their general direction.