A dog's scraping after defecation can make cleaning up his poop more awkward. It's best just to let your dog finish his scraping before you bend down to pick up his poop, otherwise you risk getting dirt or worse kicked up into your face. Most dogs will not tread in their own poop as they scrape, as they spread their paws wide enough to avoid the feces. Unlike cats, dogs do not scrape and scratch to cover up their poop. The intention is to leave the feces visible to other dogs, with an extra marking scent surrounding the poop. Don't try to train your dog out of scraping as it's a natural and instinctive behavior that takes only a little time and doesn't cause significant damage to the landscape.