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