Over the years, airlines have started charging for just about everything, packing flights with as many seats and people as possible, leaving space between seats that are comfortable only for a small child. They charge for checked bags, water, and in-flight snacks. They’ve even optimized airtime by getting planes to spend more time in the air and less time on the ground, and, as a consequence, guess what happens when there is one delay? You got it — a long sequence of delays across numerous airports that are all attributed to bad weather somewhere (“Not our fault,” says the airline). As a result of all of these injuries and insults, passengers often feel angry and hostile, and express their frustration in all kinds of ways.