In Brussels, Belgium, there was a prank committed by 148 tough bikers in Kinepolis Cinemas. These bikers filled every seat in a theater except for two, and left the empty seats in the middle of all the big burly men. Some paying customers entered and were bothered by what they saw, but those who were brave enough to push through and get to the empty seats, earned a surprise.
The prank and the video were put together by Carlsberg Beer, a German Pilsener brewed by Carlsberg Danmark.
Source: Littlethings