Imagine standing on a platform at some remote railway station. The rain is pouring down and your umbrella is safely tucked away on the top shelf in your wardrobe. You stand there soaking wet, but instead of feeling miserable and condemning life, your expectations are slowly rising as you hear the train approaching at a distance. Soon you will see it turning the corner coming around the bend and then you will hear that familiar squeaking sound as the wheels are trying to get a grip on the rails. Suddenly it is standing there, right in front of you, and within a matter of seconds the door handle will be pressed down and doors slowly slide open.