It takes a special kind of person to throw a fit about the lack of ketchup in their McDonald's delivery order. Look, in fairness to McKaren over here, we all know the disappointment of ordering delivery from McDonald's late at night when you're having a craving and not getting exactly what you ordered. But here's the thing: the food has already been delivered and unless you absolutely cannot eat it, choosing this battle is simply not worth anyone's time, money, or energy. This Karen , however,…