I have a friend who is a dog walker. Before starting her dog walking business she volunteered at the SPCA to learn about canine behavior. I think it should be mandatory for law officers to take courses to teach them about dogs and other animal behavior. This dog was a family pet and protecting the property he knows as his own. A family pet is more than a pet, it's a family member and precious to their owners. My heart aches for this family who lost their pet because a stupid cop acted too quickly and made the poorest choice possible by shooting him. I hope the legal authorities in the State of Colorado will examine this case and take the necessary action to prevent these costly errors in judgement.