Duchess behaves soooo much better off leash and more obedient actually but I would NEVER chance it. I use to take her to the dog park until I decided I hate ticks...but she would walk by me...go run with a dog...Id whistle for her to come back and she will...however if I wanted her to heel right at my side while walking the whole time she would. We live in a calm neighborhood but we live right on the corner so there is a somewhat busy 35 mile per hour street on our side. I just don't like the thought of "what if" and feel unless its a huge secluded area I would not like to take the chance.