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