Hmmmm my take on this is *somewhat* similar for my train.... * I travel in a strange vehicle which at least has a blue light on top even if it's rarely used. * I apparently travel in time - I can certainly get across London faster than everyone upstairs. Though admittedly it sometimes feels like we are travelling backwards in time... * The inside of the train cab looks much smaller than it really is. * I arrive when there are no problems and leave in order to reign chaos on the innocent. * I wear strange clothes and carry weird equipment with me. * My vehicle is held together with bodged equipment. Oh yes! * Sometimes people die around us, sometimes due to violence, sometimes due to people like me. * We come and go, changing lives forever and no-one ever asks us our names. Actually, maybe I'm more like a Dalek...