balladofwindfishes
Member
Owners of aggressive dogs aren't in the habit of risking a lawsuit by letting their dogs off leash.
As a kid I had neighbors across the street that had an aggressive pit bull they let run around their yard and that escaped daily until animal services took it away. My dad had to hide in his car once because he charged after him and was attacking the car.
My other neighbor next door to me had a Chow Chow that they let run around their barely fenced in yard. She'd get into our yard every so often, and she got incredibly aggressive around the mailman. She was gentle with us... but that's a dog that's prone to being dangerous when it wants to be. We never risked it when she escaped, just called animal services.
That's literally the only two aggressive dogs I've seen in my life and neither were well contained or restrained.