I had quite a mix-up at the Seattle (Sea-Tac) airport returning home from the writer's retreat.
Evidently, the TSA entrance to security did not lead to the TSA checking machines. So I was handed a pink card and told to go that away. I kept going, finally reached one of the last machines and put my carryon suitcase on the moving strip, went on through, and discovered - no suitcase. It finally showed up on a different moving strip, was examined and they scolded me for having the laptop inside. (I've left the laptop inside for years now. very strange.)
So the helpful guy put the suitcase and the laptop back to be re-examined and down came the suitcase again to be searched. This time the guy found my wrist support was the cause.
So I was standing there, repacking my suitcase and was almost ready to leave when the guy said, "Stop! Stop!" And showed me that my laptop was coming down the main moving strip, having been passed through by itself. I HAD HAD NO IDEA that they had separated it from the suitcase.
If I hadn't been so slow putting my carryon suitcase back together, I would have walked off without it.
Well, now I know how to navigate that airport.
If I go to that writer's retreat again, I won't be so confused.