We had that problem once, but in the suburbs. A dog started suddenly showing up and peeing on our deck; very friendly, nice dog, so we didn't want to hurt him. Next time he was up on the deck, my wife dumped 1/2 bottle of cheap Avon perfume on him. The next time she caught him on the deck, she dumped a whole bottle of one of my deer scents on him! Never saw the dog again. The dog probably didn't mind, but the owners, whoever they were, probably were not thrilled with the smell!