So, we have decided, in a fact-seeking early-morning scientific assembly at Chez Sheppard, that zombies are simply misunderstood. They walk around groaning "BRAAAAIINNNSSSSS..." In fact, they are only trying to explain that due to their lack of functioning brains, they are feeling down and really need a hug. They want to groan, "HUUUGSSS..." and somehow (due to the brains situation) they can't formulate their statement clearly. See? So the next time someone lurches up to you with their arms outstretched, try to find some empathy in your heart, and don't just run away screaming.