“It is a well-worn truth that cops grow callous, a cliché so tattered that it is even common on television. All cops face things every day that are so gruesome, brutal, and bizarre that no normal human being could deal with them on a daily basis and stay sane. And so they learn not to feel, to grow and maintain a poker-faced whimsy toward all the surprising things their fellow humans find to do to each other. All cops practice not-feeling, and it may be that Miami cops are better at it than others, since they have so many opportunities to learn.”