As I sat in Dublin Airport on Thursday morning, awaiting my flight to Malmö, I listened to the 
Ricky Gervais Podcast.  The show turned out to be so funny that I couldn't just sit there looking serious (as you're supposed to in an airport), but instead began to shake uncontrollably like a child in a classroom who can't laugh out loud because he doesn't want to get into trouble with his teacher.  Eventually I paused the podcast, so as to compose myself, and hoped that when I turned it back on it wouldn't seem quite as funny.  It didn't work, the show was just as funny and I was forced to continue with my muffled laughter.