Arguing

I'm fascinated by the compulsive need that kids have to argue. I could make a simple statement like "the sky is blue" and they'd feel the need to argue against that until I begin to doubt their sanity. (you thought I was going to say that I doubted my own sanity, didn't you?) Last night was no exception, and in exasperation I asked "Do I have 'argue with me' tattooed on my forehead?" My son quips "No, I think it is on your back."