This is what I thought, too. And I know that it's similar to what Bob thought, too, except that he thought it was the guy's dog, and that it was a "dog defending owner" thing.
If we were wrong, I apologize.
I know everyone will help us keep inviolate just about the first rule ever put into place here, seven years ago (and there are very few rules here) .... no pen- or pit-fighting.