Anti-Theft Theft is an issue for any retailer which is why most have sensor detectors when customers leave the store. While tape measures were the biggest theft item at Home Depot, saw blades, a relatively expensive item was #2, resulting in a $5 million loss per year. Home Depot challenged us to come up with a solution. Fourmark did. They designed a cost-effective, sensor-enabled and stream-line package container which was viewed as such a success that it was not only adapted throughout North America but also shipped to Italy and China.