Bizarre Vintage Tokyo Subway Poster of the Week.
(click image, via) From 1976, the message: don't throw chewing gum on the platform. Otherwise, you will disable Superman, and the Yakuza and Godzilla will kill everybody and destroy everything. Previous bizarre vintage Tokyo subway posters:
• Imaginary Santa sez: don't be a drunk like me.
• Don't crush the Buddhist nun as you rush into the car.
• Jesus has a sad because you forgot your umbrella again.