We recently asked our friends on Twitter to share the one thing they find the most annoying, frustrating, and downright maddening about air travel—and as it turns out, there are a lot of things to get angry about. A few things that never cease to irk people? Delayed flights, confusing airport terminals, and—this one's a biggie—people who recline their airplane seat back into our laps.

Here are a few of our favorite (or least favorite?) pet peeves we gathered from the Twittersphere. 

What would you add to the list?