CHICAGO, IL - DECEMBER 23 :Travelers wait in the TSA security line at O'Hare International Airport on December 23, 2016 in Chicago, Illinois. O'hare International Airport is one of the busiest hubs in the nation during the weeks surrounding Christmas and New Years. (Photo by Joshua Lott/Getty Images)
Sometimes it’s really hard to remember common courtesy when you’re tired and cranky from back to back flights and long layovers. I think we’re all guilty of at least a few of these. How do you score on the airplane etiquette guidelines?