Rescued dog protects new family

Within six hours of being picked up from the pound and saved from euthanasia, Hercules sets to work chasing off an intruder and protecting his new folks. They decide to keep him permanently instead of trying to find him a new home after fixing him up. Woot doggie adoption!

Original found on yahoo: http://gma.yahoo.com/video/lifestyle-26594257/dog-saves-the-lives-of-family-that-adopted-him-27241734.html