I haven't read this thread completely . I do however have an opinion i wish to share. When i was younger i was attacked by a neighbours dog it bit my face and very nearly took my nose off. I was a very lucky girl to have kept my nose and nowadays the scar is barely visible. The dog was a small dog i do not know the breed.
However i grew up and decided i wanted a dog when i was 16 (my parents asked all the neighbours to bring their dogs round after i was bit to show me not all dogs are evil so that i wouldn't be scared). I was allowed a dog on the condition i did my research on the breed. I chose a Mastiff i have never really liked small dogs since the attack so wanted a large breed.
My mastiff was the most loving dog in the world and was house trained and lead trained from the moment we brought her home. She was also taught not to go near my face as i have a habit now of jumping if a dog comes near my face unexpectedly.
I think these dogs get a really bad press. I also believe that its the owner not the dogs fault. As in every specie though you can get evil dogs, just like you get evil cats i know many of these and evil humans.
Its about knowing your animal, in the month leading upto her death she jumped easily when touched and she wasn't expecting it so i stopped letting her out. However prior to this she use to sit in the cul de sac i live in with all the neighbours kids playing with her and would only bark if a stranger came into the street so we all knew someone new was there.
My mastiff was also attacked by a stray collie dog and she just lay on the floor and didn't retaliate. I tried my best to get the collie off in the end it took my dad kicking the collie off her to stop the attack.
So my opinion at long last is that all breeds are capable of attacking, its how their brought up, that makes a difference.