https://youtu.be/Q3lb8kO7bM0
In this incredible video from Taiwan, you can see a very large rock break off the top of a mountain. A few seconds later it crashes into the road right in front of the car that was videoing it (using a dashcam). The rock is much larger than the cars.
Marc Laidlaw reports that a “Boy Scout leader was spotted in the area just prior.” (Via Lyle Hopwood)