Only after thinking, and having looked at myself at home in the mirror several times, realizing that I was dressed in a long black balloon to the floor in a cap, with chains, with a huge bag behind the back, in which there were 3 anti-gases, several different optical targets, and a bunch of fine useful iron, a meter sword on the side, and a ring on the chest, I understood why I was asked for documents at the entrance of the subway.