At 7:30 in the morning I don’t usually notice much, but when somebody pulls his or her trousers down in the middle of a busy station, it does tend to grab your attention.
Yes, changing trains and heading for the steps recently, I was shocked to see a gentleman stand in the middle of the platform and swiftly pull his trousers (and underwear) down. Then for good measure he adopted a squatting posture. As this is the required position for using a Japanese style toilet, for a split-second I thought he was going to perform his morning bowel movement right there and then on the platform. But thankfully for all concerned he didn’t.
Now in public the Japanese don’t usually give much away, but I’m sure I saw a slight flicker of dread on the faces of those already on the train that the trouser-dropping madman was about to board. What he did when he actually got on the train is anybody’s guess.