So, for MidSouthCon, I proposed a workshop entitled "Learn Copyeditting four Fun and Proft" (typos intentional), with the following description:
You've just received the marked-up galleys of your novel from the publisher. You have less than a week to review these pages and provide feedback. There's so much red ink on the galleys that it looks like the copyeditor was hideously attacked during the editing process! Just what do all those red lines and characters mean?