I think people need to keep in mind this is one side of the story. To think that you caused this kind of a fuss over being downgraded to economy (oh the horror), is the actual most ridiculous part of the entire story. To get to the point of having to be separated by security and personally insulting her by calling her useless is immature and not the way to solve a problem. It gets better with your tantrum over "business class blankets" and "dessert", this is just so over the top. Seriously, get a grip people, there are serious problems in this world and people unfairly suffering every day and this person is throwing a tantrum over having to sit in economy? Take your seat, show some class, and request your compensation after the flight. I would be ashamed to conduct myslf the way you described (keeping in mind i would love to hear the other side of the story in terms of your actions). I really question who the "mentally unstable" party is.