chunk: Bateman and his associates flaunt their business cards in a display of vanity. Enraged by the superiority of co-worker Paul Allen's card, Bateman murders a homeless man and kills the man's dog. At a Christmas party, Bateman makes plans to have dinner with Paul, with Paul mistaking Bateman for another coworker, Marcus Halberstram. Bateman gets Paul drunk and lures him back to his apartment. While playing "Hip to Be Square" on the stereo, explaining to Paul his opinion and interpretation of the song, and while wearing a rain coat, Bateman ambushes Paul and murders him with an axe. He disposes of Paul's body, then goes to Paul's apartment to stage the situation so that others believe Paul has run off to London.