Jerry Schwartz wrote it for PATRICK BROWN to answer..
  How about this one....
 
 JS> skin, chipped away at our brickwork, etc.  He also smears things
 JS> (snot, blood, feces) on the walls.  I don't think this is ADD, though
 JS> I don't know what it is; things like this go with autism sometimes, or
 JS> OCD.  He's never been diagnosed with any other disorders, though. 
 JS> Jerry Schwartz
We had problems with my son with smearing feces on the wall in his
room.  He was later diagnosed with ADD and Tourettes.  Seems some
Tourettes kids have an enchantment with the anal spincter.
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