Bob Mannix wrote:

Two colleauges went to a conference in Germany, for one his first trip
there. " There seem to be a lot of roads called Einbahnstrasse", he said ...
pause while penny dropped ... "oh, ah, I see, I'll get my coat..."

A decade or two ago I was working around Germany. I got used to
memorising street names, particularly the name of the street that the
hotel was on so that if I got lost I could hop in a Taxi and get back to
the right hotel - I'd found in the past that some cities have three or
four hotels from the same chain (Holiday Inn etc).

And in Wiesbaden it happened, got lost on the far side of the Kurhaus
from the hotel. I stopped someone and asked for directions - where to? -
"Holiday Inn, Einbahnstraße."