Cemeteries are quite okay, the residents never complain. Did have a close call once though ,camped right against the fence of one in Montana. Nearing dawn I awoke hearing some clicking and hissing noises. Turned out to be the automatic lawn sprinkler system had kicked into working mode. Now THAT would have been fun had I pitched the tent or only unrolled a sleeping bag among ,or on top, of those . Check for buried sprinklers always!