Tokyo Metro Manners: The Magic Word
Click comic to ENLARGE.
The Tokyo Metro has been running a 'manners campaign' for several years, and each month publishes a new poster in stations. Over the months, the campaign has pretty much covered every bit of proscribed activity (don't throw up on your fellow passengers, don't practice your golf swing on the platform with a wet umbrella, etc.) imaginable, and three months ago moved on to behavior that is apparently encouraged.
The above images are 'repurposed' from a campaign poster that urges passengers to be considerate of their fellow travelers who are too short or feeble to remove their luggage from the overhead rack, though it does not explain how the luggage got onto the rack in the first place.
EDIT: Shortly after posting this, I was informed by several friends that the tall woman on the right bears an uncanny resemblance to Matsuko Deluxe, a Japanese transvestite entertainer.
See here and here.
[To see other cartoons and comics in the Tokyo Metro series, click here or on "Tokyo Metro" in the labels below.