I brought a dog to the veterinarian last year that I found laying on the side of the highway.
Victim of a hit and run, she was struggling to get up.
The vet didn't find any broken bones, but thought there could be internal injuries. I don't know how things turned out for her, as I found the owner through the dog tag and brought the dog to its owner later.
I have a lot of empathy for dogs and people that would intentionally harm a dog or let it suffer make me sick. Makes me sometimes ashamed to be part of the human race.