Quote: W lets me know that she wants me to help her prepare for her C on Thursday, i.e. she doesn't really know what she's gonna talk about, she wants me to help her out there.
Batman! It's a trap!
Quote: My plan is to suggest that she simply describe our sitch to the C, and hope that the C will know to ask the right questions to get the conversation off to a proper start.
"The best laid plans of mice and men, oft go awry."
I think your Nightmare Scenario is particularly unimaginative. I can think of much worse, involving a stomping of your testicles, much blood, and tears (yours).
Hairdog, who knows a minefield when he sees it (I have three large dogs).