The New York City subway may seem like a luxurious convenience to residents of cities with a lack of public transportation, but the convenience is nearly outweighed by the unpleasantries that come with it. There are constant signal malfunctions and delays that make a person perpetually late to their destination. Then there are the rats that seem to run the tunnels and the strange rivers of dirty water that seem to be perpetually flowing down the G line. I'd be remiss not to mention the scent of…