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