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