This joke, that the Germans or the Swiss have no sense of humor, I never found it funny. But maybe that's just because I'm Swiss.
Not really my fight, though. I’m an American with Swiss heritage, but German-Swiss. Bankers, not diplomats.
I proudly eat proper rösti. And I pronounce it properly too, much to chagrin of my spouse.
"Zürich ist doppelt so gross wie der Wiener Zentralfriedhof, aber nur halb so lustig."
(translated: "Zurich is twice the size of Vienna's Central Cemetery, but only half as much fun.")