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