By Alek Arend Grayson Allen is no stranger to playing the villain. He was one of the most hated players in college basketball when he attended Duke. That reputation has since made its way to the NBA. Allen came under fire earlier this season for his flagrant 2 foul on Alex Caruso that left Caruso injured. He was suspended by the NBA for one game, as a result. For the first time since the dirty foul, Allen and the Bucks played the Chicago Bulls on Friday night. The former Duke star was greeted with loud boos when he checked into the game. That wasn’t all, though. Bulls fans continued booing All…