I wouldn’t compare what Romney did with shooting a dangerous dog on a farm.
I was raised on a small family ranch and live in the country by choice. Her story sounds like nonsense to me-Sounds to me like the dog was poorly trained since it was a biter-and you don’t ever let a pointer, retriever, etc loose around chickens or other birds-it is a dog selectively bred to hunt BIRDS! She could have given the dog to a rescue shelter to be trained properly and found another owner-or if she hated the dog so much, then she could have taken it to a vet to be humanely put down-not dragged it out and shot it. If a neighbor’s dog is on your property chasing/killing your livestock, then you are justified in shooting it-but not unless that is going on. Of course a person can kill their own dogs if they want, but it does say something about their personality that is not nice-even to a rural person like me...
And unless you are keeping him as a breeder, everyone I know has male goats neutered when they are very young so they do not attack people or other animals-my neighbors do it all the time, same as my family did. every rural community has at least one vet who makes farm calls for that and other livestock health needs.
Livestock is expensive-you don’t kill it unless you raised it for food or it is dying of an injury/illness-and you have someone who is a good shot to drop it with one head shot, same as when you slaughter for food-not torture the animal. I hunt deer for venison, not sport-and I don’t even like the idea of someone who kills animals when there is no need-especially not like she did...