I grew up with Dobermans. Great family dogs and very protective. They can also be mean without proper training. But I think it's a shame Pit Bulls have been bred to be vicious fighting dogs. Put the breeders and owners in jail, not the dog. A fighting dog can be gentled and learn to trust humans, though I don't know that I'd take one of them if I had children at home because a dog that's been treated badly will always have a problem with trust. If you get one from a reputable breeder it's no different than getting any other breed. Bull dogs get a hold of something and won't let go, but they're relatively stupid.
I have Australian Cattle Dogs. ACD's are the most butt-headed, head strong breed I've ever met. And they're tenacious, they'll go until they drop. They're a mixture of a few different breeds. At one time they were crossed with Bull Terriers. Their foundation breed is Dingo. You can see it strongly in their features...face & body type. These are wild dogs with an extremely strong prey instinct and in Australia they're a huge problem for ranchers because they attack their sheep.
They're extremely leery of strangers. Extremely! Because they're fiercely loyal to their family (in true working dogs their family includes their herd), I have to let them know a stranger is okay before they accept them, except for children, who they tend to instinctually protect. If not trained properly, they'll kill every chicken in the yard because their prey instinct is also what makes them good herders. For the first several months of their lives, they're on a rope tied to my belt loop and they're gradually given more and more rope. But watching them herd my goats, even after all these years, is just amazing. They're perfect for goats because goats tend to be as stubborn as they are and ACD's instinctually crouch low to the ground when a goat tries to butt or kick them. I say "herd home" and have to do nothing more than close the gait once they're in. Yet, without proper, continuous and intense training they have the potential to be as mean as an inbred, badly treated Pit. Yet, I still count on their prey instinct to chase wild turkeys, raccoons and other vermin.
Domino, below, was my hardest dog to train, but she's now my best worker. The smarter a dog (or breed) is, the harder they are to train because they think for themselves. I think this is probably true for Pit Bulls too. I have an ACD/Aussie mix that's almost 2, but during chick, duck & goose hatching season I still have to keep Zoe close to me and in control because she'll play with the babies until somebody dies. While I've seen a mother hen chase a hawk away, she's still no match for a dog. But, the Aussie in her makes her gentler with the herd and she's the perfect header. Training, training, training, treating them with respect and genuine love and affection is what matters, nothing more.
