I called my local PD today and spoke to an officer in regards to the many times posted question about using your CCW to shoot a dog in defense of yourself. He told me that there will still be an investigation as if it were a person you shot ie: confiscation of your weapon and many interviews etc. He also informed me that the "no duty to retreat" under castle doctrine would not apply as it would to a person because the dog has no way of knowing what it is doing is wrong. Therefore you must use other means or attempt to do so before firing. He said to definitely defend yourself at all costs, but expect a GIANT pain in the ass if this happens. Hope this finally clears up some confusion on the subject.