Worried that no sane person would believe my story about carrying a rock from outer space, I had done something I had never done before in all my six years at the space agency.
I was wearing my official JAXA pin badge.
This small rectangular pin is given only to employees, and I was told I would have to return it when I left the agency or retired. Since it looked imminently losable, I'd hidden it in my desk.
But now (after some searching), it was pinned to the lapel of my Hayabusa2 jacket.
I did debate "forgetting" to remove my jacket as I walked through the airport scanner.
"Oh, did I forget to remove some metal? Ah... that would be my OFFICIAL JAXA BADGE! BECAUSE I'M REALLY FROM A SPACE AGENCY, AND WHEN YOU PULL MY WEIRD LUGGAGE FOR INSPECTION, IT REALLY IS AN ACTUAL ASTEROID."
I resisted. Narrowly.