he started down the steps , meaning to go back to the cop car , meaning to slide behind the wheel and start waiting for her to show up , and that was when the last flip happened , and it was a flip this time , a flip and not a skip , he went up like a coin flipped from the thumbnail of a referee in a pregame ritual , who to kick , who to receive , and when he came back down he was slamming the vestibule door behind him , lunging into the darkness , and locking his hands around the neck of rose 's boyfriend .