This caught my attention on the local news yesterday: a pickup towing a trailer wiped out or crashed on I-84 right over the Malad Gorge in Western Idaho. That left it dangling off the side of the bridge, attached only by the trailer safety chains, which are of course there not exactly for this purpose. The occupants must have had quite the intense wait, staring down into the gorge until rescuers were able to reach them and bring them to safety.