Many areas of America are no longer civil. It's more like a war zone or the wilds of Africa. Why should any American be less aware or guarded in these areas, than someone walking across a wilderness?
Never trust the stranger behind the smile and it will serve you well. Let them earn your trust.
A Jack In The Box employee shoots at a customer complaining about french fries is shown in the next video. I remember another incident not to long ago when a fast food restaurant employee shot and killed a person over an argument about food service. I could list a hundred videos showing the same type of senseless violence of Americans attacking other Americans to prove my point, but I won't. Take it or leave it.