Let me tell you a story.
I live in the woods, 3/4s of a mile from the county road. There was another family living back here -- the wife ran a store in town, the husband was a cabinet maker, with his shop about 50 yards from his house.
One day he called me from his shop -- he had knocked off for lunch, and started out to go to the house and fix lunch, and a pack of wild dogs, including two pit bulls, was blocking the door. He was trapped in the shop.
I went down with a gun, but the dogs were gone when I got there.
That evening he called again, "Those dogs are back, on the road."
I went walking down our access road and heard barking. I went around a bend and saw my neighbor and his wife, in his truck. A pit bull was standing in front of the truck, challenging it!
Out of the corner of my eye, I saw motion. The other pit bull was headed straight for me. I killed the dog charging me, and my neighbor shot the other one out the window of his truck. The other dogs ran off.
I got to thinking, what if I had been walking out to get the mail, as I do every day, unarmed, and run into that pack?
I ALWAYS carry when hiking, riding, or just mooching around in the woods.