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