Hey, very good point! I hadn't thought of that, but it is something of a twist on "The Tell-Tale Heart" plot---being eaten up by one's own guilt. (By the way, has anyone heard the CBC Nightfall version of "Tell-Tale Heart"? Omigosh! It is one of the creepiest radio dramas I've ever heard! And very true to the original. Well worth checking out if you haven't heard it.)