My son, who turns five in a couple of weeks, rocks!We were doing some yard work with my parents (who are religious) this past weekend, and I heard about the following conversation between him and my mother from my wife. Sadly I was not there to witness it.We are tilling out some old sod from the side of my yard and he was "helping" by picking up clumps of sod and tossing them into a pile.Son: Why…