Originally Posted by
Proudelitist
It doesn't matter what other people think of you. You will never see them again.
It's important not to fall victim to the cognitive error of "The Spotlight Effect" where we tend to think people are watching and thinking about us more than they actually are.
The fear of seeming like a jerk is what seat usurpers are hoping will get you to comply. Same with panhandlers, religious recruiters and MLM people.
I'll mostly agree here except on flights to/from my hometown of MSN. I see people I know a lot.