I love them all but yes I would choose a mutt from the shelter just to provide a home for one (or two). I did get one full grown shepherd (not a mutt though) from the pound long ago and he went after one of my visitors. She had to run in the bathroom and close the door to get away and I had to call some friends to come take the dog outside since he wouldn't leave the bathroom door. I didn't have him very long when that happened. I really prefer getting a dog when it's a puppy so we can really get to know each other.