And there I stood, looking like a complete doofus. Walked through the metal detector, the TSA person said you need to go back and take that off. So, I walked backwards and did it again. This happened three times. The TSA agent just laughed at me....stuck his finger out and flipped at my lanyard I had on with my boarding pass and such in it. I had completely forgotten I had it still around my neck. I had already dutifully removed my shoes, my jacket, and figured I was good to go. What an idiot!!!