I've asked the question before and didn't get a straight answer.  When I figure out that I can turn off "light emitter" for the offending body parts, I simply started doing that.

I don't know why my skin shaders would be any different from anyone else's, given that I'm now using the same script to generate them.  If someone wants to walk through the process with me, I'm not averse to learning something new.

:)