Reggie Miller at the Garden, Bill Laimbeer just about everywhere, LeBron James in his return to Cleveland, and now Kyrie Irving in Boston. Villains have long fueled the theater that is the NBA. Irving gained nationwide attention when he flipped the bird to Celtics fans during game one of Brooklyn’s first-round series. Many were critical of his decision to respond to relentless heckling. My take: This double standard has existed far too long and, as long as he backs it up on t