A review of the final "Mad Men" season premiere coming up just as soon as I try your veal... "That's not a coincidence! It's a sign!" -Ken "Of what?" -Don "The life not lived." -Ken A handsome man in a grey suit once asked, "But what is happiness? It's a moment before you need more happiness." And at a moment in time when that man and many of the people he worked with seem to have acquired a boatload of professional happiness — or, at least, money — a ghost danced in front of him and sang about how the best things in life are free. And as "Mad Men" returns from its last hiatus, having carried its characters out of the 1960s altogether, "Severance" is a reminder of how elusive happiness is for everyone, and how the life not lived seems at once far more appealing and impossible to actually explore.