I have scarring on my lip, the result of my sons friends pit who leaped up, unprovoked to 'assert dominance' over me as I chatted with my sons girlfriend who was holding the leash. Apparently it had happened before. I did not pursue it. One year to the date later, the dog, at the same campsite, broke loose and attacked a jogger who was running by. The end result is one young woman had to endure 3 reconstructive surgeries, the legal trail that resulted, and the friend of my son had to absorb a court ordered remedy he was ill prepared to address. The dog was euthanized. I would have served my interests and all involved interests by responding immediately and insuring this dog could no longer behave as he had. The road to hell is paved with good intentions.