i don't want to see a face. but it insists on showing a face.

This does seem harder than it should be.  Many credits later...

obscured face on man wearing motorcycle helmet with black glass visor 

    droopy

And I don't want to get into the political correctness issues here, but I need to be able to create accurate images (in this case, something that says stock car racing driver), not pretty girls in red lipstick pretending to be nascar drivers by putting on a motorcycle helmet. This just isn't a serious tool yet. Clearly, we can produce photo realistic images. But there is just too much holding it back from being a real tool. We need to move on from all these false controls that are producing mediocrity. I was looking for something like this:

see image. i have tried everything i can think of. this is really just "person wearing a hemet." this tool is not usable if you need to work with images of people. everything i have seen that works has been objects only.

What specific prompt are you using? If you have "face" listed anywhere - Firefly ignores "no" or other negative commands so it would show that.