While it's a nightmare to sit next to a smelly, unruly, or rude airline passenger, it's quite amusing to stare at one through your computer screen. A meme website recently compiled 21 pictures of the most offensive fliers in the skies. After seeing this collection, we may have to lobby the FAA to implement a "no shirt, no shoes, no service" policy (FYI, the duct-taped passenger had to be restrained because he was too drunk). Check out some of the images below, and click here to see the full collection. Images courtesy of passengershaming.com.