In message , at 22:36:16 on Sun,
31 Oct 2004, Head of Toast remarked:
There is a button on the outside of each car that allows the doors on that
car to be closed.

They are generally open and closed automatically on the tubes. infact, in 10
years on living in London, I can't remember having to open/close a tube door
myself.

That's right, and if you used the button that was mentioned (down at
floor level at the end of the carriage, I think), you'd probably get
collared by the train staff.

But getting back to the original TV show, that button wasn't what was
used to trap the MI6 girl in the train when the MI5 chap jumped off.
--
Roland Perry