As you enter through the door of your house, the lights go on and off while you go down the hall to the kitchen, where the fridge warns you that you have to buy milk soon and, if you wish so, it can…

As you enter through the door of your house, the lights go on and off while you go down the hall to the kitchen, where the fridge warns you that you have to buy milk soon and, if you wish so, it can…