Dog bites man. Again and again. And, in doing so, saves his life.

Over at the Submitterator, mistergog points to this totally disgusting and weird news story and summarizes for the squeamish: "A dog bit off a man's long-infected big toe while he was passed out from a drinking binge. Upon waking, he goes to the hospital, where he is told he has diabetes. The dog apparently ate only diseased tissue. Only one thing smells like bacon…and it's gangrene!"