"You'll never look at, or reach into, an airline seat-back pocket the same after reading this.Besides being a repository for magazines, newspapers, books, iPods and air-sickness bags, seatback pockets get stuffed with all kinds of disgusting trash, from toenail clippings to mushy meals.

People do things on airplanes that they would never do in other public settings. They pluck eyebrows, polish nails and pick noses. They stick chewed gum in places only other passengers will discover. They blow noses into blankets that get folded up for the next weary traveler. They prop bare feet up on bulkheads and seats. Sometimes they even engage in sex acts." The Middle Seat - WSJ.com: