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