(though Cagney was right in this case, Lacey will not let an earlier insult go by)
Lacey: I am a good police officer.
Cagney: I know you are.
Lacey: Don't ever talk to me like that again. And don't you ever question my motives for doing my job.
Cagney: Okay. Is this over now?
Lacey: Not that easy, Chris.