Too many to name, I can't choose. The door is ajar. The building was on fire and it wasn't my fault. The problem is that Harry reflexively snarks when frightened or stressed, so I feel like a solid 5-10% of the dialogue could quality.
So by that fact, it has to be "For my next trick, anvils"/"I told you bastards! Next time, anvils!"
A 17 year set-up/payoff isn't bad at all. But what puts it over the top is imagining The (Mad) Wizard of Chicago gaining a myth/rep for following through on threats, no matter how petty. Harry's been leveraging that nervous tic in fights for over a decade in-universe. In my headcanon, somewhere there's a group of nasties trying to remember which appendages and who's orifices he was talking about. Just in case.
