At the Copley T stop, where I emerge to go to work every morning, they've had a large area blocked off for about two weeks now to install the new CharlieTicket turnstiles. The blocked-off area is where the stairs led up from one of those barred revolving doors. The door allowed people to exit but not enter, so the wall above the stairway always had a sign warning people to use the other stairs to enter the T.
Today, I discovered that they had reopened those stairs (even though the new turnstiles still aren't done) and had added some interesting new signage:
Don't you think they might have considered removing the top sign before installing the one on the bottom?