When it comes to Cersei Lannister (Lena Headey), people either love her or hate her. There is no in-between. But one thing everyone can agree on is that she is a woman you should never mess with, because it won't end well for you.To fill the hole in our heart left by this "Game of Thrones" hiatus, let's celebrate all the times Cersei Lannister was the head b*tch in charge -- with GIFs!