Pure Pumpkin Soup
Over a decade ago I was doing one of those Californian paradigm-shifty seminars in which they were actually trying to explain what a paradigm shift was. We all had to come up with our own example of a paradigm to demonstrate we understood the concept (and could therefor use it when we explained it to others!).
I declared that Soup Of The Day could be described as a paradigm. Everyone wanted to know why - I was apparently being a little obtuse. I explained that no matter what restaurant or cafe you went into in Sydney, if you ordered the Soup Of The Day, nine point nine times out of ten, you would be served pumpkin soup. Therefore, everyone naturally knew Soup Of The Day to mean pumpkin soup - it wasn't in fact soup of the day, it was Soup Of Every Day.
I further explained that Soup of The Day was in need of a major paradigm shift. Pumpkin soup was available anywhere and everywhere and maybe people were sick of pumpkin...