I really don’t know...but my father and I were standing in his driveway one day when the little kid down the street (12yrs?) came by walking one of those dogs. We chatted for a few minutes and the dog seemed fine. Suddenly, without warning, the dog lunged towards my dad’s throat. My dad was just standing there doing nothing to the dog or the child walking this dog.
That must have been absolutely horrifying. It just goes to show you, you really can’t know what is going on in an animals head. It’s always smart to play it safe around any dog. Always be on guard.