I've heard Dalmatians bite more people than any other breed. They happen to be my breed of choice, but unlike many irresponsible people, mine have a 6 ft high fenced in yard and do not run all over the countryside. Many of my neighbors seem to have some idea that since we live in the country their dogs should be allowed to go wherever they want. I had a lot of trouble with the dogs of the neighbor who used to live across the road. One was a German shepard and one was a Rottweiler. They were always running loose and threatening to attack me and guests at my home. Everytime I asked them to fence or chain the dogs they acted as if I was some kind of pain in the you know what. Well, they finally got an invisible fence, which solved my problem, but the dogs attacked one of their children. That little boy's face was practically ripped off. They shot the dogs after that. But, I can't help but wonder why they ignored the viscious behavior of their dogs until something horrible happened.
I hope your friend is okay. By all means, the pitbull owner is 100% responsible. If my dog were to get out and attack a neighbor I would certainly assume the responsibility.