Not a horror story by any means, but a husband once asked me to swap seats so that he might sit next to his wife. Naturally, he was in the first-class bulkhead on a Delta 737 and I was in row three. Why would I ever accept the cramped legroom of the bulkhead (on a 4 hour flight!) so that a random couple could sit together? If it was so important for them to be together, the wife should have moved up to the bulkhead and sent the husband's seatmate back to sit with me.

As it turned out, the wife was somewhat embarrassed that the husband even asked and we went on to have a pleasant flight. I admit I felt a little bad about denying them, but then again I would never have made such a request myself.