That's Kate playing with her erector set, making a little truck. She made a great discovery last week. She was making some brownies from a mix that I'd bought, and she turned to her mom and announced, "Aunts buy more brownie mix than moms do." That's right, she's 4, and she's discovered correlation. I've long maintained that successful software testers need to understand two things: that correlation does not necessarily imply causation, and how to make and test a hypothesis. So since Kate has correlation down she's on her way to being a nerd.