When a driver of an HGV at my son's company fell asleep at the wheel, all drivers were called to an interview to discuss the matter. The colleague who shared my son's interview (they were usually done in twos or threes) put the interviewer immediately and directly on the spot by posing the question: "What apart from telling us to get enough sleep are you going to say to us that will prevent us dozing off whilst driving?"
Sadly the interviewer was stumped by that one, he was obviously just as ill-prepared for the meeting as was the driver who crashed, for a night's driving.