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