Dollar Tree is a retailer that buys and sells relatively cheap items. This can make it a bargain hunter's paradise, but it can also have unintentional consequences. For example, since the business model of Dollar Tree depends on the store getting many shipments and deliveries every week, then turning those cheap assets into cheap retail sales, the company has to take some financial shortcuts to bolster profitability.
This usually comes in the form of a reduced workforce, where only a couple of employees are on hand to tend to a 7,000 to 10,000 square foot store. These few workers have to help customers, stock shelves, keep the store clean, and deal with deliveries. So say a worker is handling ten big boxes when a bunch of customers come in. Does the worker keep working with the boxes, or does the worker try to help out with the customers?