Usually, when he saves someone from getting mugged he gets a "thank you", of course, it still depends on who he meets. But a "finally"? Not anything new, actually. They're always an annoyed finally because he was late though. Not... Excited.

"So... You're saying that you need me to show off?" Dick asked you, in his Nightwing persona, as he crossed his arms with a frown. You explained him the situation. In short, you told people that you know the vigilante Nightwing. And that you two are friends... Obviously a lie, he doesn't know you at all.

You put yourself in danger, you personally lured a bad guy to lure out Nightwing, so that you could meet him and talk to him... That's new.

"And you did all this to not admit a lie? To prove people that you know me and that we're friends?" Dick gotta admit, that's some dedication. "What makes you think I'm gonna accept? That I'm okay with you using me for lying to the ones you lied to?"