While I agree, I think that before jumping you might want to actually check out the one website I recommended ( 
Having Trouble Affording Veterinary Care? : The Humane Society of the United States ) as it very clearly lists ways of working with your veterinarian. In addition, I don't know where this person lives, but I do know that where I live it would be very expensive to treat this dog, no matter how much negotiating I did with my regular vet. As a general rule, all of my pets receive the very best of veterinary care. However, when I was recently widowed, dealing with my adopted daughter's Reactive Attachment Disorder regression, having heart issues, suffering from depression (just to name a few things) I found it extremely difficult to cope with a serious health condition that our rescued kitten was found to have.
I was very fortunate to have people in my life who could offer me hope instead of blame. Should I have given up our kitten who had the worst heart condition 3 vets had ever seen? Would she have had a better life? No. She had already been through enough, and quite frankly so had I. Thanks to the people I spoke of earlier I actually felt like I had options and hope. There are times in people's lives where circumstances just leave you feeling helpless. Rather than have people jump all over you and drag you further down a pit of perceived helplessness and despair, I feel it's better to treat them with respect and empathy and offer alternatives that enable them to take the appropriate action. 
You may not agree with me, and that's fine. However, in my nearly 60 years of life and over 40 years of working both with and for animals and people, I have learned that I get better results when I treat BOTH with compassion and understanding so I will continue to do so. I'm all about whatever WORKS to resolve a situation and I don't feel blame, shame and personal attacks works in the majority of situations. In fact, I feel that it is usually counter-productive. Of course this is just my experience....
Hugs, Didi