Above the Law reports:
In a 5-0 ruling, the [South Dakota Supreme Court] overturned the conviction of Michael James Plenty Horse for indecent exposure because he didn’t attempt to arouse others when he tried to have sex with [a] mannequin in a dark, closed room at a YMCA in Sioux Falls, S.D.
Ok you perv. Go read about the lurid details on Above the Law.