Well, Michael, it’s good for you that YOU have that choice to make for yourself. But would you kill your grandmother or elder family member simply because they’re old? Slow? Tired? Worn out? Her dog is not in pain, she’s in her last months, years. I’m an animal rescuer and having had to say goodbye to many animals for various reasons, it’s not a selfish act to allow a loved one to pass naturally when not suffering. What is a gutless act is to take them to be “put down” (very touching and sweet, by the way) simply because you don’t want to deal with old age. Death is a part of life – not you’re choice to make for someone or something else.