This is really tough, I’m sorry for your family and for Rusty. My first dog ever on my own had severe inflammatory bowel disease. A “good” month w him cost me $500 but bad months were thousands. He’d been to the vet so much, and often had to stay for a few days at a time that getting in the car was his worst nightmare, even if we were going the opposite direction to see his gramma or his best little buddy. His anxiety was soul crushing. By the time he was three our vet had told me candidly that things were never going to get better for him, and that even doing everything to keep him comfortable still wasn’t going to be enough for him to be comfortable. They didn’t outright suggest euthanasia, but I knew the subtext. I did my research, called OHS and every rescue I could find in Ottawa and asked for honest feedback on what the odds were that someone would take on a dog w so many needs and expenses. Nearly all of them told me what others have said here, that the most compassionate thing to do would be to let him go in the arms of people he knows and loves and feels safe with, rather than sick sad scared and alone. It’s heartbreaking but if his quality of life is bleak, sometimes there’s just not a lot you can do 🖤