I have three dogs, two boxers and one puppy great dane/ masif /boxer mix. Two of the three have been digging around my trees and various other places in my yard. Is there something out there that can prevent them from digging. I’ve heard people say use predator urine i.e (fox, coyote, wolf) other say human urine. At this point I’ll try anything, looking for some good ideas that wont harm my dogs.