Courtesy of Onca:

I took a domestic flight not long ago. It was the red eye, and lucky if the plane was even 10% full. I counted probably 2 dozen passengers in all. There were so many spare seats you could have an entire aisle to yourself. So where does the check-in person put my seat? Right smack next to this fat guy. And I don't mean with an empty seat between us. I was squeezed right in beside the freakin Michelin Man. Needless to say after we were airborne I quickly unwedged myself and moved to one of the many, many empty aisles. But I still had to endure takeoff with John Goodman's big brother hogging all the air. I'm sure the check-in person thought it was a big joke, and they deserve a beatdown.