http://www.aolnews.com/2011/02/12/chase-britton-boy-without-a-cerebellum-baffles-doctors/?ncid=webmailHeather and David Britton want everyone to understand a few things about their giggling, bespectacled 3-year-old son, Chase."He's happy. We call him the Little Gremlin. He loves to play tricks on people. He loves to sing. His goal in life is to make people smile," Heather Britton told AOL News.…