Now granted, there are probably some caveats to training in a cemetery. First, make sure it's legal, or at least make sure there aren't any specific rules against it. Second, think solitude. You wouldn't want to train on say, Memorial Day, or during funerals or whenever anyone else was there. Using bumper launchers, wingers, starter pistols or incessant yells or whistle blasts should be avoided. Using headstones to set up your blinds is probably a no-no. And for sure you'd want to leave any random bones your dog may happen to bring back to you. But if you do it in a respectful manner and when no one else was around, pick up after yourself and your dog, a local cemetery may just turn out to be an underground training hit.