We always knew the "Gilligan's Island" gang was smoking something—they were the most clueless folks this side of Mayberry. Now we may have a clue about where the weed came from. Dawn Wells—a.k.a. Mary Ann—got six months' probation (for "reckless driving") after police pulled her over last October in Idaho and discovered marijuana in her car. Wells, 69, says it wasn't hers. OK. But you'd think after that island, she'd be done taking strange trips.