I have never called animal control in my life, however I'm a wilderness type guy who's raised dogs and wolf
hybrids, and I;ve never really felt threatened enough by even larger dogs to do it. I bet he's doing that thing
where if you..or even you and your dog walk towards him he barks, and kind of backs up a bit acting tough,
but if you turn your back or try to walk away from him he gets closer. typical dog thing..as long as you hold
your ground and you dont run, act scared, or make sudden movements most dogs wont attack you.