Lessons learned?
It appears that the youngster who prioritized his feet’s rest over allowing someone to sit down didn’t learn anything. The male that sat on top of him was attempting to educate him a lesson about personal space and mass transit by calling his bluff.
Unfortunately, because the youngster screamed abuse at the man as he was getting off the subway, we are unsure how much of the lesson was absorbed. Hopefully, it took him only a little time to absorb it and now he mind his own business.