Back in the winter a cache buddy and I were out on a cache run in a backwoods area here. We were roughly a half mile from the truck and stumbled upon a pack of ferel dogs with a fresh kill. They didn't much seem to like company and a couple began to posture at us. We started to back out to where we came from when two of them (both at least part pit bull, BTW) charged, teeth bared.
I am a concealed weapons instructor for the state, and travel no where without backup. So as my buddy was urinating down one leg and pooping down the other trying to run away, I made quick work of dispatching both animals. The others scattered with the wind.
I hate to kill any creature like that, but i was not going to be mauled by ferel dogs in the middle of nowhere. That was probably the worst day we have had critter wise. This also put an end to our cache run that day. We informed the local Fish and wildlife officers about the pack and later learned that they pretty well wiped them out for the safety of the community.