I have been in both situations, natural passing and euthanasia: my first boxer (and the one that made me fall in love with the breed), Capulet, was rescued at age 4 and died peacefully in her sleep at age 14 after giving me 10 incredible years with her. Then in November of 1999 I adopted a new baby, Dixie, that was rescued from an abusive home. We knew that Dixie was a special needs girl in that she came with fear of men, and advanced kidney disease. Over the year that she was with us, she was treated by our vet as well as a vet school for her kidney problem. After so many visits to the vet and traveling to the school, she started to let us know that she was approaching her time, although outwardly she appeared entirely normal and healthy. In the end, she couldn't eat and had trouble moving around - her kidneys had completely shut down and the toxins had caused ulceration in her stomach and intestines, and she was in constant pain. It was apparent at that point that there was only one option. The only thing that could hurt me more than not having her with me
was having her with me and in pain. So, I held her sweet head as our vet gave the shot and she gently passed to the bridge. Immediately before she passed she lay her paw on my face, as if she was saying thank you. She was just over 2 years old.
Unfortunately, her kidney problems were a direct result of her abusive home. Her previous owner had not provided water on a regular basis, and household cleaners were ingested while she was young. He also thought it was funny
to give her beer and liquor. His son turned him in and he was convicted. Amazingly, she was the sweetest dog I have ever been around.
That was my first experience with euthanasia, and hopefully my last, but should it ever be the only solution to ending uneccessary pain and suffering - I won't hesitate to do what's best for the dog. I do strongly agree that this should only be done on the advice of a well trusted vet, and with a very well known staff of vet and vet techs.