In this video, witnesses to a car-motorcycle crash quickly self-organize to lift a flaming car off the trapped motorcyclist. In addition to being an inspiring, life-affirming clip, it's also a fascinating study in collective action. Generally, people are less likely to take action in an emergency when others are around (each person assumes someone else is better qualified to help), but you can see this effect being quickly overcome as some people join the effort, luring others, despite the flames and danger.
On a stretch of road by the crest of a hill in Logan, Utah, on Monday, a motorcycle and a BMW collided, throwing the cyclist under the car and causing the bike to burst into flames, which quickly spread to the sedan. Rather than fleeing those two flaming vehicles, a dozen bystanders rushed toward the blaze, lifted the car and pulled the injured man out by his ankle.