i walk 2 powerful dogs all the time and they are always on leash under my control and these aholes are all over the place that let their dogs offleash on the beach and they always say mines friendly well my female isnt i tell them and they shrug all the time and continue. if in fact a fight breaks out remove the dogs back legs out of the fight it reduces the damage to the other dog. but yes i would shoot a dog if in fact it turned ugly mine if it got off the leash or theirs.