[Music] Monday mornings, the most dreadful moment of the week for so many people. Let me ask you, why do some people love their work and others hate it. A few years ago, my sister was admitted into a hospital in the excellent city of Lagos, Nigeria.While visiting her at the hospital, I met a hospital cleaner called David. I spoke a conversation with him and I asked, "David, what do you do for the hospital?" I was expecting a common answer like, "I'm a cleaner. I clean floors." But David was different. He sa ...