Candyce Stapen, USA TODAY 6:58 a.m. December 14, 2013

Most annoying fliersSky misdemeanors continue with the audio insensitive who speaks or cranks his music up too loudly, 19%, and tying for seventh and eighth place with 13% each are the seat-back guy who reclines his chair full tilt, and the carry-on baggage offender who totes too much luggage onboard. The back seat grabber, that person behind you who launches himself upright by clutching your seat back, and the queue jumper, the one who elbows down the aisle to deplane before everyone else, each received 12% of the bad behavior votes.

According to Expedia, 10% of the 1001 surveyed reported engaging in sex with a fellow flight mate. Nonetheless, respondents deemed inappropriate levels of affection a social breach when it involved someone else, giving the amorous, a 9% disapproval rating.

However, the actions at 30,000-feet are not all etiquette disasters.  More than three-quarters of respondents — 79% — report experiencing the kindness of strangers. Most often, the  good deeds were switching seats, 32 %, helping with luggage, 12%, and sharing food or drinks, 8%.

So have you been naughty or nice?

Airplane etiquette

Expedia’s guide to violations of airplane etiquette. (Photo: Expedia)