When a good GUI goes bad.

(Rant)A Graphical User Interface is supposed to provide the user with an intelligent means of navigating a given program or Operating System.

Developers have an obligation to be consistent when building a user interface. Navigation "buttons" should be layered so that they provide both full access and full egress. Just like an elevator, there should be buttons to go UP and DOWN at every floor. The only exceptions would be at the very bottom or the very top.(/Rant)