When construction accidents happen, they can maim and kill. The use of heavy equipment on construction sites makes it more likely for people to be badly hurt if they're involved in an accident than if they were in an accident elsewhere.
When you're on the job, you know that there are risks. However, it's your hope that those risks can be mitigated and that you have a great chance of completing your work for the day without injuries.
You love working in construction because your job is there to make things better for everyone. You create beautiful structures, make repairs and generally do the work that many others would find too strenuous.