Gilbert Gottfried. Known for his sometimes inappropriate style of humor, Gottfried chose to make a series of jokes on Twitter about the tsunami that hit Japan in 2011. Shortly after making the jokes, the comedian was fired from his job as the voice of the Aflac duck. In an opinion piece for CNN last year Gottfried wrote that it's a comedian's job to push boundaries and that Aflac shouldn't have been surprised at the tweets. "I've been telling jokes like this for a very long time, so the reaction surprised me," he wrote.