"Eat Me! If you don't, the gods will shower their wrath upon us all... (hint: we don't want that)"
I first saw it around 3pm, I think. Since it was still there just now, I've gone ahead and eaten it. Perhaps I'm too trusting of my hallmates, especially since I've only met one of them. But even playing Diplomacy I won't be that paranoid. Besides, I got a chocolate chocolate chip cookie out of it.