Disable Shutdown Button while using Terminal Services

When I remote desktop into the server remotely, the shutdown button shut's down the server.  Granted I have the reason for shutdown turned on, so some less skillful admin's have to fill in the reason and click okay before they really shutdown the server... but

Is it possible to replace the shutdown button with a Log Off button for remote sessions or disable it all together?

Seems like it could be a huge problem if I (or someone logged in as Admin) shutdown the server that's 4 hours away.