The prerecorded voice on the MBTA buses and trains is soulless and robotic.  How great would it be to have a Boston native be the voice of the system?  Instead of a robotic voice telling you the doors are closing, you could have Sully proclaim, "The doors are now closing, Get Back!"  or "The T is now out of service please Go Away!"  

Sure, you might say this is pointless, but think of it from a tourist's perspective.  They get off the plane at Logan and hop on the Blue line to hear Sully, in his native Boston accent, tell them to "Get Back" from the closing doors.  It's an experience you wouldn't find anywhere else.