Display a note when the screen is locked in OS X Lion

Lock message

New in OS X Lion is the ability to display a message when the screen is locked. This is useful to inform your co-workers not to meddle with your Mac in your absence. Go to System Preferences > Security & Privacy. Under the General tab, check the option “Show a message when the screen is locked” and key in your note below.┬áIf you’re not able to check the option or key in the note, click on the lock icon at bottom left corner to unlock for editing.