Daniel Twardowski’s mobile rang. It wasn’t a good time as he was busy working in his vineyard, but when you are a one-man band and still in the process of establishing your own business, you cannot afford to ignore phone calls, no matter where you are or what you are doing. The reception was not very good, as his vines are located at the Hofberg site in the valley of the Dhron, a small tributary of the Mosel, and the person at the other line just happened to call from the United States. The caller voiced an interest in purchasing...