[Love_Capone]

Over the holiday weekend Capone started showing some posession agression that I have NEVER seen from him. Normally if he has a toy and another dog comes along he will tug on it and play and try to get it back, but never growl or bark. My grandma has standard a poodle and she had a bone. As soon as Capone spotted the bone he wanted it and ran with it to a corner to chew on, which was fine, but soon as CoCo (poodle) even came near him he started growling and barking. If a person came to take it he didn't react that way, just with the dog. He isn't very fond of CoCo either she doesn't realize her size. I'm concerned because I'm so very close to bringing him home a little brother and I don't want this to be a problem. Should I be concerned?