A trip to the plumbing store, because that's where all kids want to go. Right?
/My son's ongoing obsession with water treatment facilities, electrical grids, and underlying infrastructure of our world (and more recently, the human body) perhaps reached its apex this week when he asked my wife to stop at a plumbing supply store so he could examine the items in stock.
Credit my wife for taking the time to stop and allow him to satisfy his curiosity. I'm not sure where all this interest in infrastructure will lead, but hopefully it includes an enormous college scholarship and a lifetime of gainful employment.