Don't look at them, don't listen to them, just don't. As much as you loved watching Mr. Rogers touring the tuba factory, this is not the same thing.
- Surgery. Espcially on yourself.
- A mechanic fixing your car.
- Home repairs - on your home.
- A short order chef, preparing your dinner
That's it. Just don't do it. The person doing the work probably knows what they are doing, it's not going to kill you, but the process involves some gruesome details that you just don't want to know about.