people may not be aware of it. loosing pens, pads are not that big deal. there are workers who steal big number of inventories for personal use, or resale them. they can minimize or totally eliminate profits. i read this a day ago from an article. when an inventory is delivered, they should be counted and verified. store the materials in a locked area. of course plants are not included to this. i suggest cameras to important areas. well, choose best employees, secure inventory to reduce employee theft.