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