I'm back in Berlin this week on business and, no sooner did I arrive, than I hit the proverbial wall. My hotel, the Ritz-Carlton, is right near the site of the Berlin Wall at Potsdamer Platz, where they keep original pieces of the Wall on display for tourists. I discovered a wall of another kind, however, at the Starbucks around the corner when I tried to place my usual order. "I'll have a Grande Half Caff," I said cheerfully to the German Barista behind the counter. I might as well have been talking to a Brick Wall. "We don't offer half caffs here because we don't brew decaff," she said, coldly. "In that case, I'll have a Grande Drip," I replied and then, to get her goat, I asked if she wouldn't mind baking me one of Starbucks' Famous Triple Berry Cobbler Muffins. "I can't imagine why you don't serve them here," I said, "They're making such an indelible impression in the States ...!"