Its been years and this little interaction with Dum Dum still lives rent free in my head.
When you walk up to him outside Totentanz the interaction goes like this:
Dum Dum: You? Again? Alone this time, huh? No punk-ass 'amigo' today?
V: One more word about him and I stamp you out like a roach, got it?
Dum Dum: Got it.
I love this interaction because V just threatened one of the highest ranking members of the most violent gang in NC on their own terf and Dum Dum just responds like almost kindly given the context??? There's no way he's afraid of V, he's surrounded by his gang. I feel like his response of "got it" is like "Damn, you lost a choom? I know how that is. Won't mention it again." Which is just not something you'd expect from a scary robo-monster man.