We were on a Dublin tour bus tour, enjoying the driver's incredibly witty and funny narration. He said he needed to stop for a moment and check in with his supervisor. The boss came up to the driver's window and the men had a spirited, genuinely affectionate and absolutely hilarious conversation. The supervisor said goodbye and walked along the side of the bus back to his post. I caught this smile as he walked past the window, the beautiful smile of a man who obviously loves his job.