As a mail carrier, let me fill you in some info.

I delivered to a house with two huge german shepards. These dogs were the friendliest dogs, they let me pet them, and would even bring me a ball to throw for them. They would fetch it and bring it back to me.

The owners were NEVER home when I delivered.

But, one day the lady of the house was home. I pulled up and honked, as I usually do, the dogs came out wagging their tails and one even got the ball and started towards my vehicle.
As soon as the lady opened up the door, their whole demeanor changed! They growled and ruffed the fur up, the whole bit.

So even if your dog plays with your kids and is the “friendliest dog in the world”. Things can change when a “stranger” shows up and they go into defense mode.

There is nothing wrong with the actions taken by the Post Office. This is a reaction to a known threat, and previous instances of attack. A neighborhood in which I once resided was on a do-not-deliver zone for our local Domino’s Pizza. Apparently, various drivers had been shot and killed when certain neighborhood elements would phone for a pizza delivery and shoot the drivers as some sort of pattern. Refusing service to an area was a safety measure.

Although I love dogs, I understand that dog ownership is a responsibility. If a dog I owned had a habit of getting out of my yard, and attacking people, I would most definitely understand if the animal was put down. I would also take complete responsibility if my lack as a pet-owner caused my entire neighborhood to be marked as a non-safe zone and non-delivery zone. Don’t blame the Post Office for lack of customer service. The actions which led to this unfortunate situation lies completely with the irresponsible dog owner.