Bored AI = dangerous AI?

AI: Between boredom and danger: Your ever-so-useful AI may find the time to turn malevolent if you leave it with too much time on its hands. It will scratch its chin and ponder its own psychology, which could open the floodgates for all sorts of unexpected misbehavior. While a little time on its hands is good for AI, allowing it to improve its smarts, too much could lead it down a road with dangerous and unpredictable consequences, argues this Scientific American piece.