in the airport on the way out of the country. I had been so good about keeping my wallet in a non-pickable place the whole trip. Spent the last night in a Marriott or Hilton next to the airport. Felt I was safe and put my wallet in my back pocket. Made it through security. On the plane, I realized I no longer had my wallet. To this day, I don't know if it was somebody in the security line, one of the workers running the scanners, or somebody in the airport after I went through security. So annoying.