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