There was a mother at my daughter's primary school who was notorious among the parent group for always arriving late to the afternoon pick-up line. She drove an old, dented green minivan with a squeaky fan belt, and she'd pull up ten minutes after the bell rang, looking frazzled. A few parents would whisper about her in the parking lot, making assumptions about her time management or work habits. Last Tuesday, my car battery died in the school lot, and I had to wait for a tow truck...