ADVANCE FOR USE SATURDAY, APRIL 12 AND THEREAFTER - In this March 25, 2014, photo, eighth-grader Lauryn Layette clings to a squirming pig as principal Nate Sheppard prepares to kiss it during an assembly at Thomas Jefferson Middle School in Decatur, Ill. Thomas Jefferson students who were on time every day of ISAT testing were rewarded by getting to watch their principal pucker up to the pig. (AP Photo/Herald & Review, Jim Bowling)