Engineer on PA: Check the back door, check the back door, we’ve got a red light.
Conductor, in very geeky voice: Okay… Okay, everybody. Whoever you are. Who… Uh… Uh… Manually tries to… Uh… Open the train doors… Uh… You’ll… You’ll… You’ll be locked up… I’m tellin’ ya…! You’ll be locked up!
(entire train howls with laughter)

–Train Arriving at Penn Station

Overheard by: Margaret