They're dogs, so that makes sense. You're just marking your territory.I've not tried this as my garden fox just comes to play, sleep, and eat easy stuff, but I read about this so am passing it on, and I promise I am not taking you for a ride.
Apparently one of the best ways to stop them coming around and digging up stuff, is to pee I your own garden. Pee in a bottle then sprinkle it around the areas he flanges about in, and I is supposed to work.
Sorry, got serious there for a moment. Won't happen again. You're still right, though.