Thus you see why the rest of us find you, and your chosen profession, to be the scum of the Earth. This kid saved a man's life, and thwarted a robbery, and because of some potential litigation for the company he loses his job. Our legal system is complete trash.
I don't think most people find me personally "the scum of the Earth," and I don't particularly care about, or respect, anyone who does. I don't know who you are, nor do I care to, but if you're prepared to hate me simply for being an attorney I consider you a fool. I expect that if and when you need an attorney to, say, defend you or a loved one against criminal charges, to prosecute someone who has wronged you, or to defend you against a frivolous lawsuit, you will conveniently adopt a healthier and more nuanced perspective toward my profession.
Let me put this another way that does not rely on concepts of legal liability: allowing minimum-wage hourly employees with no law enforcement training to act in a law enforcement capacity needlessly endangers public safety. Apparently the "Fake Beard Bandit" had robbed dozens of other stores without any injuries or fatalities. The actions of this clerk needlessly increased the danger to himself, his manager, and the public. I am reminded of what happened to a member of the Glock Talk forums, which I used to frequent - he was a lawful CCL holder and tried to intervene in the robbery of a liquor store. As tends to happen, the bad guy was more willing to pull the trigger, and the good guy was shot and killed. His family and friends were left with the knowledge that while he had acted, in a sense, bravely, he was dead in the interest of protecting $80 in the till of a stranger's liquor store.
I still think the clerk in this instance acted bravely, but his actions were foolish and I don't see how any business can afford to condone this kind of behavior.