Ill-Mannered
When observing closely, individuals can engage in some anti-social behavior when confined in a tight space with many other people. You might find that the pressure of a crowded train brings out the worse in people, which is exactly what happened today.
Against the Rules
Jessica approached the woman and respectively asked if she could seat there while motioning to the vacant seat. The woman had her taking the liberty of using that seat for a gigantic Louis Vuitton bag, which was stopping another passenger from sitting down.