This is a video from Finland of a man throwing rocks at an excavator, while the machine's human operator nimbly keeps the machine's bucket between the rocks and himself. It's pretty much a modern David and Goliath, if police had shown up and hauled David off to jail before he could get a killing shot in. Truthfully, despite the promising concept, the whole thing is was rather anticlimactic. Me? I could have taken that excavator out, no questions asked. If there's one thing I know, it's how to fight machines and break their morale. Just ask my vacuum. "He forcefed me coins and paperclips until I promised to act right." You're damn right I did.
Keep going for the video, which is best watched at 2x speed with the Benny Hill music playing in another browser window, as pointed out by commenters. Then it's actually pretty watchable.