Dan must have some strong genetics. The kids can do things I can't do. Both Joshua and Katie can pop their jaws in and out. It's very alarming. Gotta be Dan. The boys like to make the number four with their fingers by putting their pinky down and leaving the other four fingers up. I can only do this with one hand. My right hand is apparently not flexible enough? Gotta be Dan. And Thomas has perfected the belly roll. Again, gotta be Dan.