H/t Doug T. It was all in good fun, but the Morning Joe gang staged a bit of business today suggesting there's something a mite stronger than half-and-half in Mika Brzezinski's cup of, well, morning joe. After signing off with NBC reporter Tom Costello, Joe Scarborough made much of Mika's absence from the set. Cut to a shot of Brzezinski at the coffee counter, where she is seen . . . emptying a blue mini-bottle into her coffee mug. Mika accommodatingly turns the bottle toward the camera so that all can see it is . . . Skyy vodka. View...