Exclusive: If you haven't seen 'The Hangover,' your life has a serious void in it. If you have, you know that Rob Riggle's taser-to-the-face scene was one of the movie's crowning achievements. So, PopEater is proud to exclusively premiere a Rob Riggle PSA in honor of the 'Hangover' DVD as well as 'National Hangover Day' -- you know, New Year's Day -- in the hopes of helping fans stave off any whopping headaches, whether it's from tequila or a taser. Cheers!