My teenage son lives in abject filth.  His room would be condemned if the city inspectors could wade through the mess!  We have made his room "HIS" space and under his complete dominion.  In turn, he has created a complete mess of this space.  I am sure that there is a set of dishes I have been looking for since last spring.  My current fear is that there are critters hatching there that will be a health danger to the other mebers of the family. How do I deal with this and not violate his privacy and space?