Today in pettiness: Dude sues airline for not serving authentic Champagne

As a man who just adores Edith Piaf has no doubt informed you, the term "Champagne" refers to a sparkling wine that comes from the Champagne region of France. 
You are probably also aware that people often refer to all sparkling wine as "Champagne" — kind of a Kleenex/tissue scenario. One man, however, took such issue with this colloquialism that he decided to sue an airline for using it.
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Per the BBC, Dan