Care to avoid be ridiculed by your Thanksgiving hosts following your departure after din din? Good. Then pay attention. (For those of you who have T-Day hosts who regularly gulp Chuck Shaw or Yellowtail, ew, feel free to ignore this post. You're screwed anyway.) Here's what NOT to bring to Thanksgiving dinner: Cabernet Sauvignon (for the love of God, don't bring Cab) Merlot Petite Sirah Chardonnay (unless there is a crab dish) The varietals above......