Let's say you wanted a piece of furniture you saw at a store (let's say circuit city, officemax, or bestbuy) for $150 bucks. Unfortunately, they ran out but called the closest store in the next town to put it on hold for you. When you get there, you tell them that you're here to pick up the furniture you asked to be on held because they were out of stock in your store back home. They load it up into your car and tell you 'happy holidays'. On the way home, you realized they never asked to ring you up so you never paid. Would you continue driving on home....or go back and explain?