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