I'm a nut case when it comes to dogs. I ADORE my Alaskan Malamute ('course I've adored every dog I ever had).
In the early 90's, my GF acquired a male pit-bull. He had been semi-abandoned when his owner moved out of a trailer park her family owned.
He was chained all day and night to a 7 foot tall doghouse and watered & fed sporadically, whenever the other tenants felt like it.
So she decided she would take him home. Since I had the pickup and the trailer, I was elected.
At first I couldn't even approach him 'cause he was filled with rage, lunged against his chain and spit hate at me.
So I had the neighbors unchain him and put him into the back of my pickup (w/topper).
Once in the pickup his demeanor changed from night to day. He was almost docile, let me pet him, didn't bark.
In her yard he was once again chained to the dog-house, but fed and watered properly and visited on and off all day.
I'd sit in a chair within chain-length, he'd stand on his hind legs, put his forelegs in my lap and almost swoon when I petted him. I'd pet his head, he'd close his eyes, push his head closer and -- I could swear -- he sighed.
I soon talked her into unchaining him. He ended up sleeping in bed with her.
One of the sweetest dogs I've ever known. I loved him.
On the other hand, didn't take him long to kill her chow, just 2 tries.
She sold him one day (without telling me!) 'cause he kept escaping the yard and wandering the neighborhood.
I think pit-bulls can be lovely dogs. OTOH, they are extremely powerful and were bred to fight. They were bred to fight other dogs, not people 'cause, as mentioned above, their handlers didn't want to be attacked. But with their great power, their breeding and their unpredictability, I think that there are other more suitable breeds for a pet.
Much as I like them, I wouldn't keep a pit-bull. Just too much risk. And I'm not even mentioning the home-owners insurance company or the liability, which is considerable. I didn't struggle to build some assets just to lose them in a personal injury dog-mauling law-suit.
But more even important than legal liability is the risk is to life and limb.
As I mentioned, I adore my dog. But if I was convinced he was a true danger to my kid or to anyone elses kid, or to anyone else, I'd have him put down and cry later.
Dogs contribute great a joy to my life -- I can make a good case that dogs can help to keep one healthy and that they enhance longevity -- they're absolutely wonderful. But if humans don't come first to you, you may need to take a good long look in the mirror.
matis