My dogs are rabbit and squirrel repellent, though in my unfenced front yard, the squirrel mafia goes wild. I put out a couple of new sempervivums that I potted up and the $#@&*^! squirrels dug both of them up. Then they proceeded to hang out on my front porch table and chide my cats for chattering at them, starting a loud 5am cat uproar.
Full disclosure: I am a hypocrite, I have one squirrel named Hazel that I love. I treat her for fleas and deworm her and feed her from my hand. Never when the dogs are out, of course.