Another day, another report of objects being hurled at annual shareholder meetings in Europe. Today's report comes from Luxembourg, where

Angry steel workers attacked the Luxembourg headquarters of ArcelorMittal, the world's biggest steelmaker, during the company's annual shareholders' meeting yesterday, setting off smoke bombs and breaking through the front door in protest at temporary layoffs.

Buses had brought 1,000 workers from plants in northern France and Charleroi and Liège in southern Belgium. Some hurled cobblestones and steel fencing, smashing windows and tearing off a steel moulding from the ornate 1920s exterior as riot police lined up to protect the head office.

Here's the video: