Sorry if this had been seen before but just thought this snippet might slot in here.
From Business Insider UK Susan Fiske, a professor at Princeton University, cited a study that was published in May 2016.
My Bold. If true, what an astonishing observation.
1. Simply walking through first class on a plane can make economy passengers really, really angry
Researchers found that fliers who were reminded of social inequality were more likely to get angry and start "air-rage" incidents, becoming abusive or unruly toward crew members and other passengers.
Specifically, air-rage incidents in the economy class were nearly four times more common in planes with a first-class cabin. And those incidents were more than twice as common in planes that required passengers to board from the front, meaning everyone had to walk through the first-class cabin.
Bottom line: No one likes being reminded that other people are getting better treatment than they are, especially after they've shelled out a hefty sum for a flight.