If you’ve ever ‘accidentally’ gotten an extra orange at the self-checkout or got the cheaper price by entering in the non-organic version of something, you better stop right now. The store clerks at Walmart can see your purchase on their devices. They can see how much everything is so far, they can even freeze it, walk over and pretend like there’s a problem with your machine if they think that you’re stealing. So next time you want to make your bill lower by forgetting to scan something… don’t do it my friend!