You step up to the door of your home, the place you spend most of your time. The stress of your day bears down on you. Sliding the key which you have used every day for what seems an eternity into the lock, a faint sound comes to you through the door; the sound of laughter. Is someone in your house? You pause, fear slowly creeping up your spine. Then the fear is replaced by sudden anger. This is your
home! Who dares to trespass here? You quickly unlock and then open the door, step inside, and close it firmly behind you.