I seriously was ribbin' him about the real dog thing, the walking stick would be a good thing. I wouldn't risk putting yourself in a bad situation with the other owner for the sake of keeping your dog from getting scared. Most dogs off the leash while with their owner around are gtg (as you've seen for yourself). Now if you do decide to harm somebody's dog that at no fault of your own thought meant you or your dog harm, the other owner might not see things your way and get a little pissed off, then things might escalate between you two...now you have a much bigger problem on your hands. A taser might turn an otherwise harmless dog into an aggressive dog (fight or flight) and you probably wouldn't want that when they're within arm's reach. Honestly I welcome any dog to approach mine, he's a pitbull but he's pretty submissive so if the other dog means harm (focused, stiff tail, back hair on end) then I might be ready to react otherwise they usually end up messing around with each other.