Many years ago when my children were small, my wife prevailed upon me to “be a good father” and buy a swing-set for the family. She envisioned the children swinging and playing happily in a yard full of neighbor kids, and then she could be a “Kool-Aid mom” by providing treats. In contrast to her vision of all the great things a swing-set would do for our children, I envisioned fights, broken arms, and worn spots on my grass.