RD, all of my girls, even my import, who was not raised by me, and was mishandled and ill socialized, are friendly, sociable, outgoing, love to be petted by anyone, whether in my home, or out in public. I do feel that a great deal of this is strongly influenced by early training and socialization, and the expectations of the owner/trainer. I expect my dogs to be friendly and sociable. I take puppies EVERYWHERE with me from 10 weeks on. When I have a new puppy, that puppy is out with me going SOMEWHERE for active training and socialization with people they don't know a MINIMUM of 3X per week. I take puppies to Home Supply Stores. (We have been welcomed at many Home Depots, and Lowe's stores...when she was small, we arrived with our own clean up supplies as well). We go to banks, the place where I get my oil changed and tires rotated. I've been known to hang out outside Walmarts, etc, to intercept friendly people who want to pet and visit with a cute puppy. To me, this is one of the things that makes a MONUMENTAL difference in the dog you end up with later. It builds confidence, and puppies learn very early about attention under distraction. I have never owned a single Rottweiler that was concerned about the approach of any stranger when on the end of my leash, or once someone is inside my home. Like most dogs, they charge the door if someone knocks. They are BALLISTIC inside my van, or behind my fence, and I have NO DOUBT that any of them would use deadly force if I were ever confronted with a real threat from any person. The early socialization does not diminish this protective instinct in the dog whatsoever, it just lets them learn early on what friendly unthreatening people look like, and how to enjoy being approached and touched by a wide variety of people. I have zero interest in a dog I can't take places, or that does not like being petted by people of any flavor.