<Li> <P> "DO NOT USE the toilet while the train is stopped at the station" notice in Polish, German, French, and English, displayed by Polish State Railways </P> </Li> <P> "DO NOT USE the toilet while the train is stopped at the station" notice in Polish, German, French, and English, displayed by Polish State Railways </P> <Li> <P> Vacuum waste tank on a China Railways 25T coach </P> </Li> <P> Vacuum waste tank on a China Railways 25T coach </P>

Where does the poop go on a train