From Overheard in New York:

Conductor: Fordham, this is the Fordham stop. You may exit here, but please, no new passengers are to get on at this stop. Sir, I said no passengers may get on the train… Anyone wearing a brown jacket may not get on at this stop. Sir, you, in the brown jacket. I see you. Yes, you sir, in the brown jacket who just got on the train. Of course I’m talking to you, genius… Thank you. Grand Central, next stop.