From Nine traits of the veteran Unix admin. I like these two best: Admin trait No. 2 ;-)
While we know that emacs is near and dear to the hearts of many Unix admins, it really is the Unix equivalent of Microsoft Word. Vi -- and explicitly vim -- is the true tool for veteran Unix geeks who need to get things done and not muck about with the extraneous nonsense that comes with emacs. Emacs has a built-in game of Tetris, for crying out loud.
Admin trait No. 6:
It also means we never think that a problem exists until we can see it for ourselves. Telling a veteran Unix admin that a file "vanished" will get you a snort of derision. Prove to him that it really happened and he'll dive into the problem tirelessly until a suitable, sensible cause and solution are found.