it seems embarrassing now , to have been so excited by a simple train journey that millions of people took every day , but seth can feel a little smile spread across his face as he steps farther down the car , shining the torch on the overhead racks and the assorted blocks of seats , two here , three there , and at the back of the car , the little boxed door to the horrible train toilet that owen , without fail , would need to use within five minutes of the train leaving the station in whatever direction .