Sorry to hear about the pup. It always breaks hearts to hear about pets passing away. I think that is why lots of people swear they will never again grow attached to an animal. I think when we take in a pet, we all know it will come a time that there will be an end. That is true for all of us, people and animals. It is just so hard to accept it when it happens. Hopefully, after the tears subside, we all can remember ever so fondly, how much we appreciated and enjoyed the company of our dear pet(s). It is the love that they bring us that allows them to leave us, peacefully, hopefully. And they deserve NOT to be in pain or discomfort. They are such wonderful creatures, aren't they?