A biopsy was taken of the liver and of the kidney, and the diagnosis issued by the histopathologist was 'cryptogenic granulomatosis of both organs'. A granulomatosis is a particular inflammatory condition of a tissue. The solution to lachrymation and pain in the ear was easily found in replacing the two dental bridges with as many well-made ones, while fever and problems with the kidneys and the liver were palliated by administering a cortisone-based therapy, a therapeutic strategy which saved the patient from haemodialysis. Many centuries after, man learned how to use that fire, how to cook food, how to fabricate artifacts, so something unknown to nature was introduced into the environment: waste. The models are rather numerous, and their look is quite varied, but the most common is that of six thin metal stems joined at the top of a conical shape like the framework of a tepee.