Everything gets stolen. Mostly by employees. When I worked retail somebody got away with a treadmill. Just wheeled out the door on a cart, nobody said a thing. Later I was looking for a treadmill after a customer had checked the online stock count, and the system was off by three, not just the one I knew had disappeared.

The other big problem with the counts is just stuff moving around the store. It's a limited physical space, and it isn't all merchandised according to the book. Un-recorded promo displays get set up, things get moved onto top shelves and departments where they don't belong.