When some type of disaster occurs, the owners of a store will take measures to protect their business and their property. A lot of places like wal-mart will stack bales of compressed cardboard in front of the doors.
These blocks of compressed cardboard act as a barricade to help stop people from driving cars or trucks through the front doors. Most of the time the front doors of these large stores will be made of glass – which offer little to no protection from a car or truck. During the Rodney King riots, some store owners also used these blocks of cardboard as bullet stops. Its kinda difficult for a bullet to penetrate 3 – 4 feet of compressed cardboard. The store owners were able to band together behind these blocks of cardboard, and stop the crowds of looters from destroying their stores .
This video was filmed just before Hurricane Ike made landfall in Galveston, Texas.