Oh wow! What a neat story. (except that the poor man had to have his leg partially amputated) But at least he didn't bleed to death, as he would have, had that dog not saved him. I love stories like that. Thanks for sharing.
There was a pitbull cross that had been tied and abandoned about 300kms, in the nearest city to where i live. They tied it up at the shore line in some mangroves and left it. Under the tide line, but a woman found it, and she has decided to keep it, so atleast it has a good home now.