Anyone who pays attention to the fragility of human relationships realizes that they cannot be trusted. Sometimes it seems as if they are all born doomed to die. Those that appear to be successful, one just has to wait until the day comes when trust suddenly breaks down and it is all over. It does not even have to be that long: sometimes, for much less, the relationship turns sour, the natural estrangement follows and, before one notices, it is already broken. Not even the best, most lasting relationships are too sure of an untimely end. It is sad to see, but that is the way it is.