Try some dog and cat repellent sprayed around the plants, that is some pretty strong smelling stuff. If the neighbors ask, tell them a stray cat/opossum/raccoon has been coming into the yard.
ok thanks man how about if i find a dead skunk and ill throw it in my next doors backyard cuz it smells like a skunk for a while and when ever they remove ill just throw another one lol ill do it all year they get mad but who cares