One of the things that I think shows Bruno’s insanity is how he acts and the things he says.
“Ready to turn yourself over?” Bruno jeered shrilly.”Ready to tell Anne all about it, huh? Ready to spend the next twenty years in jail? Sure, I’m ready!” He brought his palms together gently. His eyes seemed to glow a red light. His swaying figure was like that of an evil spirit’s that might have stepped from the twisted black tree behind him.
I can just imagine the look of insanity on Bruno as he’s saying this to Guy.
Bruno reminds me of Joker just because of the things he says and he isn’t as crazy as the Joker but that’s what I think he reminds me of.