I'm one of the ones who voted occasionally. I had a LOT of problems with Nicki when we didn't leash her. She was actually hit by a car once because she sprinted when we opened the door.... she went flying whenever she got out of the house without a leash. We moved to a house right off a busy road. If she went running, she'd most certainly run into the road and get hit. We spent a lot of time learning to trust each other and learning where the boundaries are. She knows the people she can greet and those she can't. She has the 6th sense of people that are afraid of dogs and I have to watch her because she has taken it as her duty to greet them in her extra special way to prove she's nice. But since I'm out there with her, I say "no" and she wags her tail with her whole body ready to greet if the person shows signs of welcoming her greeting (they never do)

As for being off our property, she is ALWAYS leashed. But we also play the "home" game ParNone talked about.