[wykkar1210]

I two Yorkies - 2-1/2 and 1-1/2. While both are wonderful, the little one has developed an "attack" mode on anyone coming into the house. I need to explain that I recently moved in with a roommate who has three Yorkies and they all get along great. But could Cooper's new aggression be due to all the uproar of moving over the last few weeks and the new home? When it's just the "family" he is the sweetest, most loving of them all.

What should I do? Do you have any advice on how to help him? I'm actually afraid he'll bite someone.....