My little Morkie did this to me last night when I took her out to go potty around 11:00pm (it didn't help that I was in the middle of a scary movie called the Happening at the time.) She kept backing up, growling, and barking at nothing! She has never done that before. And like I said being that I was watching the scary movie it scared the tarnations out of me! I took her back inside and locked the door!
