North Texas storms hit Lewisville like freight trains in the spring dark, a wall of wind and a crack of hail, then morning light on limbs scattered across the street. Junior's Tree Services comes with ropes and saws to make sense of it, taking down broken branches, clearing the yard, and trimming what remains so the tree can carry on. This is old Cross Timbers country, where post oaks and blackjacks grew in thick bands before any town was here, and many of those trees still stand over backyards and driveways. Pruning with an eye to the tree's shape — lifting a low limb off a roof, thinning a crowded crown so the wind can pass through — keeps that shade where it belongs. A particular calm settles after the cleanup, when the sawdust is raked and the oak looks like itself again.