Guns: right to bear arms on the job?

A pizza dude gets fired because he carries a gun while delivering pizzas, and wound up shooting another dude TEN TIMES who tried to rob him, thus violating Pizza Hut's no-you-can't-carry-a-gun-while-delivering-pizzas rule. A jury decided he acted in self-defense? Maybe the first shot or two, self-defense. Shots 2-10 sound awfully much like manslaughter to me.

And so this USA Today article says that rules like this are under attack for violating the Second Amendment. WTF-ever! Since when did anyone have Free Speech at their job, never mind the right to carry a weapon into the homes of people who have not invited the weapon (just a pizza) into their homes?

Somebody needs to read Le' Entranger!