Rescue Dobermans. We've had many over the years, from 1 to 3 at a time. All were rescued from nasty owners, and DH even stole one that was kept tied to a tree in an abandoned orchard. That one, Hilda, was the most beautiful picture perfect Dobe I've ever seen, with the brains of a cartoon blonde!!! But loving and extremely protective, as long as she remembered who was visiting family and strangers.
Kurt was rescued from a medical testing group, and was the most intelligent dog who ever lived, bar none. Then there was Hans, starving and brought to our door step and left there. Gertrude, dumped when her family moved and someone told us about her running around, begging food. 3 others, but they were old when we got them, all we could do is feed and pet them for the short time we had them.
A large Doberman in the car's front seat tends to discourage anyone who wants a free ride from strangers.....