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