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