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Open Walls, open dialogue

When you paint on a wall in the middle of the city, people want to talk to you. They want to tell you how they would have painted things differently, choosing a different shade of green or a different subject entirely. They want to know why you're there. They want to tell you their stories. "You did that, man?" they ask. "That is all right." For six days last month, the artist known as Gaia painted on the side of a Korean rice cake factory in the 2000 block of N. Charles St. in Station North. First the Roman god Mercury emerged on the gray cinder-block wall, gazing west toward a beauty supply store. Then a tiger took shape over the trash-strewn vacant lot. A...