"On June 27, 2014 a Prince Edward County Deputy was charged by a vicious dog at a residence while he was attempting civil paper service. The Deputy tried to get away from the dog but the animal lunged at him so he fired his weapon as required by training."
Of course, it certainly sounds like the guy went off the hinge. You would likely have just stood there and let him sink teeth into your arm and patted him on the head. Yes, "thugs" I tell you, "thugs"...
These things also happen. However it hey do not justify the shooting of harmless pets, unarmed children and adults and whomever else officers take a fancy to shoot which activity is now SOP. A cop comes to your door there is a fair chance you, a pet, or one or more family members will die because the officer can say he “felt threatened” and be absolved of what for him is a recreational shoot.
This happens rarelyly. I suppose one such incident justifies the shooting of children and pacific dogs and whoever an officer chooses to shoot. That, alas is the world in which we live and in which you seem to take some pleasure.