In movies asking masked people and assassins "who are you". Also police yelling halt, stop or freeze at a person legging it. At no point in history has that worked (other than in The Mask where it was done awesomely). Also "but" when it is preceded by something like "Now, I'm not racist..." or "Now, I'm not Sexist...". It is nearly always followed by something exactly that. Occasionally I use that sought of phrase correctly when I say something like "This isn't to be sexist or anything but generally speaking men can drink more alcohol than women" (which is true it isn't prejudice)