Mackay has learned to stamp her feet. At first, it was part of her dancing. Any time she hears music (radio, tv commercials, even her dad's off key ditties), she gets this look of absolute joy. She sort of hunches her shoulders, bounces up and down, and begins to randomly stamp one foot. Sadly, she lacks any sense of rhythm, and would not look out of place in the backwoods of the Ozarks. (No offense to any of you Ozarkians out there.) She also seems to stamp when she's excited, or she discovers a new surface (a towel on the floor, a manhole cover, a rug...) She gets both feet going really fast - frankly doing a passable impression of Jennifer Beals in Flashdance. More recently, she has started stamping when she's mad. If you take something away from her, she lets out an ear-piercing screech, balls her hands up into furious little fists, and stamps her foot for emphasis. I have to turn away when she does it, because if I laugh at her, it only makes her madder. I thought the...