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