She also complained that the bottom of the mast was dirty. These things are just dirty, it's part of them, there is grease, hammer lubricant, and when you start a hole you mix water with the cuttings to make a slurry to collar the hole. The cuttings are coming up out of the hole with 120psi of air behind them.
She just had no idea, my guess is this mines inspector has moved across from some other government department. Or, she used to work in some other area of the mines department and applied for this job.
There are very few who know what a drilling rig does or how they operate, we get stupid questions asked all the time, this one was just the best one we have heard to date.

