The next time you're flying and find yourself sitting next to a loud, foul-mouthed neighbor, go ahead and tell them to put a cork in it. Your fellow passengers are likely to thank you.

According to a recent survey by the online-booking agent Travelocity, "loud talking or swearing" are among the most rude and irritating behaviors out there, beating out "kicking the seat," which even a good pair of headphones can't drown out.

But topping the list of major irritants are those who rush to exit a plane at journey's end, presumably to be the first to the baggage claim, where their fellow travelers can then listen to them curse about having to wait for their luggage.

Dubbed the 2009 Rudeness Poll, Travelocity said it tapped the opinions of nearly 1,600 North Americans on a wide array of bad behavior from profanity, bickering families, poor hygiene and oversized carry-on luggage.

Rushing to be first off the plane topped the list of annoyances at 57 percent, followed by loud talking at 56 percent, and kicking the seat at 50 percent, the travel firm said. Sitting next to passengers with poor hygiene came in fourth at 45 percent.

The greatest annoyance had nothing to do with bad behavior, however. More than 80 percent of respondents said large passengers - a polite euphemism for obese people - were the most troublesome and felt they should be given two seats, with 44 percent adding that the airline should accommodate them at no extra cost.

Earlier this year, UAL Corp's United Airlines said it would require large passengers to purchase two seats at the flight attendants' discretion. Southwest Airlines, US Airways and AMR Corp's American Airlines have similar policies.

The Travelocity poll took into account respondents' home countries, and found those from the United States are more tolerant of sloppy lines when boarding the plane than Canadians. Only 20 percent of the Americans found the lack of "queue discipline" bothersome, compared with 29 percent of the Canadians.

People who lug big carry-on bags into the cabin topped a list of irritations when boarding a plane, Travelocity said, with 29 percent of respondents in agreement.