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