An Amish boy and his father were visiting a mall. They were amazed by almost everything they saw, but especially by two shiny, silver walls that could move apart and then slide back together again. The boy asked, “What is this, Father?” The father (never having seen an elevator) responded, “Son, I have never seen anything like this in my life, I don't know what it is.” While the boy and his father were watching with amazement, a fat old lady in a wheel chair rolled up to the moving walls and...