The most basic security system

A few days ago I walked past a granite dealer and was a little surprised to see that they stored much of their merchandise unlocked and unfenced in front of their building.

It took me a second to see the beauty inherent in rocks weighing hundreds of pounds - you can just leave in your driveway because they will be too hard to steal. It was heartwarming to see that the company also realized this and the opted not to even build a fence around much of their stockyard.