Work accident
The video shows two workers, likely professionals given the environment, unloading a large, heavy piece of granite from a delivery truck in a warehouse/showroom. The danger lies in the potential for the granite slab to fall and crush the worker guiding it down the ramp, as he is not using any visible safety equipment and his coworker momentarily loses his grip. The aftermath is not shown, but if the granite were to fall, the worker could suffer serious injuries.