Mom
Once when visiting my mother in another province she came with me when I checked into the airport. With all the traveling I've done I've never seen them open 'checked' luggage in front of me, only carry-on.
But they did it, right in front of Mom. Zipped it wide open, and there was an eye-full. And they did it AFTER x-raying it, so they had a pretty good idea of what was in there.
I laughed because my Mom already knows everything about me and had seen the contents but I wondered if they did it on purpose? Trouble makers.