I don’t know what the afternoon before Memorial Day was like where you live, but out here along the Missouri River, so many boats were gliding over the water it looked like Amity Island in that scene from the movie “Jaws.’’ I said as much to Nancy as we sat in the shade on our front porch and watched fishing boats, pontoons, ski boats, an enormous house boat, a couple of jet skis and, yup, a sail boat fill the river from one bank to the other. H…