No absolutely not! The Pitbull attacked your pride and joy and you acted selflessly to save your pooch which was a brave thing to do considering you could of put yourself in the line of danger, regardless of what the owner had to say his dog attacked your family and the repercussions where swift and decisive on your part. You have no emotion to show because you're are in shock and still processing the event that just took place. Some idiot who shouldn't own a Pitbull nearly just killed your dog. More power to you for taking control of the situation and not having an ounce of remorse because I bet if that was someone else they'd one not of had a gun and two not had the rational thinking to make a decision so quick. You most likely saved some other poor sods dog from enduring the same fate, so good for you mate.