A German joke An old man was travelling by train from his hometown of Offenburg to visit family in Frankfurt am Main. It was quite a journey for him, since he never got around much. At one time the conductor walks by yelling ""HEIDELBERG, GET OFF!"" The man thinks, ""That's my name!"" and gets off the train marvelling at the wonders of modern technology that allow the railway companies to remind passengers by name where they have to change. While on the platform he hears ""HEIDELBERG, COME IN!""…