Err, I don't recall any "Attack canaries." Was that in HBP? *will look it up later*

Anyway, I have a question about Hermione. I want to know what she would say in a situation like the one in my story, since I don't think "GET BACK HERE AND FIGHT YOU FILTHY COWARD!" would work.

Ok here it is: It's after they all graduated from Hogwarts. Voldemort's dead, but Death Eaters are still rampant. Hermione's an Auror, undercover as a Police member in a pirate colony. She's disguised as a pirate and everything. She's chasing a criminal through a crowd. What would she possibly shout at him? The above quote sounds more like Moody, if you ask me.