John Curtis had been working as a site engineer at a local construction firm. He started this job straight from university. He eventually settled down, married and had two children. His career was...

John Curtis had been working as a site engineer at a local construction firm. He started this job straight from university. He eventually settled down, married and had two children. His career was fast developing and he was rising quickly through the ranks to senior engineer and, eventually, project manager. One day, John was setting out some road kerb lines for a 250 housing-unit development when he looked up from the surveying instrument and received a hot blast of sparks from a saw being used to cut road kerbs. This permanently damaged his eye sight.What are the human consequences for John and his family?