I was waiting for the next train back to my home, when a confident, gentle voice from behind told me: "Excuse me, I would like to see you naked." A bit stunned I turned around and started to express my outrage: "What ...", only to look up to one of the aliens.

It was just a short way over the border. Delivery drones weren't yet allowed in the human-only zones, so I had been asked to bring the special package to the next station in the mixed territory. I have never been...