I look at the issue from two different directions. I have companion animals and work animals.
My companion animals are a large part of what defines me.
About a year and a half ago, I had an untenable dog situation where two of the hounds decided that they simply despised each other...just one of those things. I tried many different things to attempt a resolution, spent a great deal of time trying to fix the situation, and it simply grew worse. What a horror. Two dogs were miserable and I loathed the idea that one would need to move to a different home. This created a huge problem, because while the home situation was bad, an unknown could be either wonderful or horrible.
Well things sometimes have a good way of working out and the solution was right in front of me. A friend had lost his dogs and kinda needed the companionship of a dog, but this friend was really not ready for another dog. But after the loss of a great dog, when is the right time for a new set of memories? There really is no perfect time as we can't replace a great dog, only start a new set of memories.
This friend is a complete dog lover who would provide a great home for one of my dogs and I knew his dog standards well and was completely confident that my baby would be happy and well taken care of. As I was discussing my need to move this one dog along, my friend and I realized at the same time what the solution was. It was a bitter sweet moment when I dropped the big guy off at his new home, but I did it with confidence.
Now, when I see my "former" dog, I realize what a great choice it was. The dog is very happy and well taken care of, and my friend is so happy with his dog. A perfect solution!!
I could never ever ever dump such a noble and loyal animal as a dog.
Now, my work animals are a different story. These horses are well maintained, they are conditionally loved as work animals, not companions, and they do not live in my house. I will protect them, vet them, and enjoy them, but as work animlas, I am forced to maintain an emotional distance from them. Anything else causes them to lose their effectiveness. Simple facts that must be followed.