geez . . u guys are frikkin' nutz.
Shooting, drugging, sticking insullation in the dogs mouth . . . . have you thought that you are taking this out on the wrong animal? The dog is doing what dogs do. It's the humans that own the dog that should to be shot, drugged or choked with insullation.
Jules . . . . get a couple of HUGE PA speakers and point them at the house. Play some horrible Ricky Martin tune over and over . . LOUD! When the humans come out of the house to come over and complain . . . pick them off one by one.
Or go over, talk to them with blood all over your shoes and in your hair. Be sure to wear a dress. A Japanese sword hanging down to the ground would be a nice touch. An uzi on a strap hanging over your shoulder. With two of those bullet belts criss crossed across your chest. Wear a hat made out of a dog's head.
Honestly, I don't know what you can do if they don't choose to cooperate. There are muzzles to keep him from biting, but I don't think they stop them from barking. The do have an electronic collar that you put on a dog that will train him to stop . . . but I doubt they will do that as they want him to protect the house . . . I guess.
It's the people, not the dog that's the problem. He is just being a dog protecting his joint. If your studio is in a commercial location . . . and this stops you from making a living, I'm sure the coppers will have to help you. If you are not in a commercial location . . . choking the people is your best option.