mamatutu, thanks! You would never know it, but Beanie is a rescue who spent the first two years of her life as a ferral dog. She is a lovey-dovey at home, but is terribly dog aggressive out of doors. However, she seems to be Hattie's pet dog; they are buddies and Hattie with all her puppy energy just pushes Beanie around. Beanie has also been trained to let my wife's rabbits hop all around and over her.
We have gone so far as to write to the dog whispher trying to get some help for Beanie. Go figure.