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