Probably not very funny, but surprisingly fitting, in my mind. As Vader is leaving Krennic after their little discussion, take the lines between Dagget and Bane from this scene here:
https://www.youtube.com/watch?v=pB0imvTpE2Y
In particular, I like the lines:
Krennic/Dagget: Stay here. I’m in charge.
Vader/Bane: (Force chokes Krennic) Do you feel in charge?
If you could fit other lines in there, it’d be kinda cool. “You’re pure evil.” “I’m necessary evil.”
I haven’t seen the movie since the one time in the theater, so I’m not sure about timing, but Ben Mendelsohn and the intimidating synthesized voice seem so fitting for the scene.