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