Richard,
Tina and Betty are adorable and the world is a better place for what you are doing for these girls. I have similar feelings when I find one of our Rottie rescues hairless with mange or with their necks split open from trying to escape from a collar and chain. But all we can do is what we are doing: take care of the ones we can save and find them great homes for the rest of their lives.

Another friend who lives a few houses away from us rescues Cairn Terriers and she has similar stories about the dogs she's taken out of horrendous situations where they've been bred from the moment they were able to conceive and at 2 or 3 had had maybe 5 litters. But, like you, I'm amazed at how socially adaptable they are. You'd think they'd hate people but they never knew any better so they accepted their lot. Same with most of the Rotties I find. They trust people although they have every reason not to. Maybe there's a lesson there for us, too.

Jim