Dongchuan is a big producer of potato in Kunming. My other interesting experience of Dongchuan is that, when I drove to the Red Land on a photo-shooting tour, I sopped at a small inn for night. You know, urban residents like buying farm produce when they go to the countryside for sightseeing. I was interested in sacks of potatoes in a storage house near the inn, and came up with an idea to get some. The keeper was a toothy grandpa in his 60s. He asked me if I needed any help. Knowing I intended to buy some potatoes, he sold me some 40 kg "imposingly" at a very low price, saying it was a good chance to take home some specialties since I was here. It was good I drove a car, and if I bought them in town, it should have costed me much more than I had paid. Ha! Ha, sometimes you need to learn to be an accountant…