why some of these hunks of meat slowly simmering in their own juices over a lifetime lean toward a healthy , productive , moral , decent banquet of life and others fester and molder into what can charitably be compared to a often salmonella tainted 'meal ' at one of the world 's countless infamous roadside hamburger stands ( that no health inspectors ever seem to visit ) is a question perhaps best left for priests , psychologists , philosophers ... or perhaps a humble detective .