WHEN YOU SMOKE  HEMP IT LEAVES A RESIDUE 
 TAR   INSIDE   THE  MACHINE,   WHICH  IS 
 EXTRACTABLE  WITH THE  HELP  OF A  METAL 
 ROD.  BE WARY HOWEVER, THAT THE HEMP TAR 
 IS  NOT  AS VISCOUS  AS YOU MAY THINK... 
 IT'LL  QUICKLY GET ON  YOUR  FINGERS AND 
 BOOBS...  AND IT'S HARD TO GET OFF. VERY 
   STICKY BUSINESS INDEED. MOST PEOPLE    
 JUST   GET   RID   OF   THEIR   MACHINES