stern said , `` what 's your best guess ? how did it change so quickly ? the plan is good , i tell myself as i watch the crew finish the job . he wanted to know before he had to run for the bus . `` we 're fine , '' he said after he made sure they were both secure . i cut an icy look outside the window . 'human nature does n't really work that way , does it ? he said , making me feel even better . 