Be Kind: Don't Chat with Cashiers in Checkout Lines

One of my pet peeves as a shopper, revisited from the cashier's point of view:

http://www.associatedcontent.com/article/8238417/three_things_a_dollar_store_employee.html?cat=46

(And here I thought I only hated stores that teach cashiers to attempt eye contact and chat with customers because I used to catch chatty cashiers in mistakes...which were always in the store's favor, at one particular store.)