I'm not sure if this is a defense move, but I like to call it Mason's Karate Kid pose. I notice he does it when Nathan comes in the room.
He has spent this weekend with his father and his brothers, just spending time with the boys while Mom is off at work. Derek told me that in the car today, Ethan kept laughing in the back seat. When Derek asked him why he was laughing, Ethan told him that every he laughed, Mason would smile. Mason's smile would then make Ethan laugh harder.
Derek described his boys as "delightful" today. The older tried to help the younger and the youngest was just happy to be with his brothers. It's days like this that make you think that you just might survive and the kids might turn out alright. I think these are the days that make motherhood seem a whole lot less tedious and a lot more joyful. But maybe that's just me.