No course worker positions would be complete without racer and non-racer volunteers, and at one time or another nearly every attendant helps make an event possible. Some jobs are more visible than others. Those who set up and tear down the course (the dirtiest jobs) and the timing folks (highest pressure) are pretty much unseen. The tech inspectors get the most arguements. The start line crew really are our last defence from our own safety omissions or parts failures. But the last people to see racers uninjured or alive-- I might have to disagree