Picture it. A perfectly lovely seven-year-old sits down at Grandma’s Thanksgiving table, looks at the sweet potato casserole with the little marshmallows on top, and announces to fourteen relatives, “That looks like slime.” Every parent at that table has the same thought: Where did that come from? I can tell you exactly where it came from. It came from Tuesday. Not because Tuesday dinner is a disaster (although some Tuesdays, sure). It came from Tuesday because that’s where k