One of my favorite coworker interactions was when my next-cube neighbor was defending his messy desk by trying to quote Einstein:  "Empty desk, empty mind."  This particular person is the last person who should be quoting (or misquoting) Einstein, and also the last person who should be claiming to not have an empty head.  So when I said to him, "I have a clean desk; what are you trying to say?", the look on his empty-headed face was priceless. #business