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