I know exactly what you folks are talking about.
A few years ago I had to catch an airline flight to replace a captain on one of our 72s because he had gotten sick. As I was then working for the government we had to travel in cattle class.
I was assigned an isle seat and there was a man sitting in the window seat, leaving the middle seat open. Just before push back we both were feeling lucky because no one had shown up for the middle seat; I had been told that the flight was full.
Sure enough I hear a commotion and looked up, and guess what? You got it; here come this woman that had to have weighed 400lbs. Yup, she had the middle seat. I get up and stand in the isle has she lifts up both armrest and plops down. The poor guy in the window seat is squashed against the window and I now only have half of a seat left.
This fat b!tch stares at me daring me to say or do anything. Well no way in he!! am I going to try to sit back down. I go to the head FA and tell him I have a problem. He is getting upset because it is push back time and I refuse to sit down. However when he come back to coach and sees the problem he calms down. As we stand there trying to figure out what to do this fatso starts to bellow that she should be moved up to first class because the seats are bigger and if they don’t upgrade her she will sue the airline for discrimination. (Which make one wonder how often this fatty had pulled this trick and had gotten a free upgrade?)
There was only one first class seat left. So to make matters easier we went up to the cockpit and I showed the Captain my ID (United States Marshal) and pilot licenses. And to make a long story short I rode the jump seat and he poor guy in the window seat got the first class seat. Fatso stayed in coach.
I did find out later that the fat bimbo did sue the airline because she had to have a seat belt extension and that she was embarrassed when a FA made a PA announcement that the flight would be delayed because there was no extension onboard. I don’t know what happened, she probably settled out of court for a couple of $100,000.00.
So in closing; GO SOUTHWEST!
One other point, no way could this fatso gotten through the window exit.