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