It’s true. 98.7% of Japanese men are salary men, who slave away over a hot keyboard for 37 hours a day, 9.5 days a week, rarely seeing their wives or children.
The lack of adequate time for relaxation means that many have to just take it wherever and whenever they can get it.
Such as at 11pm on the Yamanote sen, the busiest train line in Japan. Of course, you see people falling asleep on the trains all the time, but not usually with the kind of style the company president I was faced with tonight (between Ueno and Ikebukuro) displayed.