I fear you're turning into one of those Manhattan kids they make television shows about. The MTA subway system is not our own personal chauffeur. The A train takes anyone who wants to ride, up and down 8th Avenue and into Brooklyn all day. While the train is always available for us to use, it's not only for us, therefore, you needn't cry when the train leaves the station after we've gotten off. It will come back next time we need it.