It's wild to me that in 2026, flight crews still spend an inordinate amount of time reminding people they can't smoke aboard the plane, and that train conductors have to constantly remind people not to open the doors if the train is stopped on the tracks.

Like, there's always going to be a Main Character who will smoke on the plane or open the train doors. No amount of announcements is going to reach them, but it wears everyone else down.