Islam and Fun.

I walk a great deal - it's one of the virtues/vices of not owning a car. And I often traverse (?interesting choice of word, eh?) a heavily immigrant Islamic area of town.
Something always struck me as vaguely familiar about the area. Yesterday it suddenly hit me! It was like East Berlin. You know, in the days with the Berlin Wall and Vopos and everything.
Quite a few years back, I was on tour with an orchestra, and we were scheduled to give a concert in West Berlin. As a courtesy, we were given (allowed?) a tour of East Berlin. While on the tour bus, I spent several hours puzzling over what seemed odd. Aside from the still-existing devastation of WWII, and the general economic malaise, there was an indefinable something. I could not put my finger on it exactly. The after several hours it suddenly dawned on me. No-one was smiling!
In any city, people walking on the street are a general mix of emotional states - some happy, some sad, some angry - the usual mix of personal states. But East Berlin was definitely missing the happy/glad part. No smiling pedestrians, no happy faces anywhere.
And the Islamic area that I walk through here is like that old East Berlin. No smiles, no sense of happiness from anyone. I would expect a great deal of it - after all, aren't they glad to be here rather than wherever they emigrated from? Evidently not.
And I believe I know the answer. Allow me a quote: "There are no jokes in Islam. There is no humour in Islam. There is no fun in Islam." - Ayatollah Khomeini.