I've had to spray my tomatoes years ago with hot pepper sauce, or wet them and sprinkle pepper on the lovely tomatoes. My Dobermans, or at least one of them, loved tomatoes. When I could see her nosing about the vines on the fence, checking out the salad bar, I'd have to hose them off and sprinkle pepper on them to keep them safe for myself and family. I don't think squirrels like pepper either.