Sitting in the back seat of a station wagon, two sisters, ages 6 and 8 start bickering. One won’t scoot over, the other is making annoying sounds. Typical car ride for this family. The parents up front try ignoring the children, but soon enough it gets to be too intolerable. “Girls, be quiet and look out your windows.” Snapped their mom. The sisters quiet down, giving each other snobby glances before turning to their windows. The silence doesn’t last long before they are picking at each other again. Putting their foot over on the others side of the seat. Sticking their tongues out and making faces. The parents are noticeably agitated now. “Hey, you two better stop that right now.”…