For a number of years, every time my wife and I traveled to Florida to visit her parents, as we turned into their street, we passed an unfinished house. The concrete slab had been poured and the walls erected years before. But the structure had no roof and no interior walls. The stereotypical South Florida vegetation had nearly swallowed the structure. Just last weekend, during our visit to North Carolina to see three of our four daughters, we passed a similar sight. The foot