The only significant paranormal activity I ever witnessed in a cemetery was in one in Idaho near the small town where Senator Craig, he of the playing footsie in the airport bathroom fame, is from. Some guy got out of a car a couple hundred yards from the cemetery, took out a rifle, and started winging shots in my direction. I stood behind a tree until he left. I could hear the bullets zipping through the grass. Fortunately, he didn't hit my car.