There was a lady who brought her leopard hound to the barn and he would just chase the horses all day. I told her to tie him or don't bring him since she wouldn't discipline him for it and it was getting dangerous, or I would buy a plastic BB gun and pepper his butt with plastic balls.
She let him run until I got the BB gun and started firing at his hind end when he'd go after the horses. I only had to hit his thigh once before she freaked out and never brought him back.
This was at a highly expensive fox hunting facility. Some of you will tell me "I would kill you if you shot my dog!" But you know what? The lady was warned, the dog was acting dangerously, the bullets were little plastic balls and no one was hurt, and everyone needed to take the situation seriously. No one did until I pulled out the gun.
And those who were seen dancing were thought to be insane by those who could not hear the music