I did something embarrassing a few weeks ago. Despite a solid driving record for 40 years (not a single multi-vehicle collision), I managed to rip my front bumper nearly clean off — backing past a fire hydrant at low speed. My truck has cameras and sensors all around it, specifically designed to prevent exactly this kind of mishap. So what happened? I got comfortable. I thought I knew what was around me, and after waiting 30 minutes in a narrow driveway for my passenger to arrive, lost track...