Nick Zucco and Robin in “Unfinished Business”

When the acid strikes your skin, it doesn't burn. It's much worse. It's like insects eating away at your flesh... burrowing inside of you. I can still feel them crawling all over me.

Robin

I didn't want this to happen to you, Nick.

I'm not Nick anymore. That's what the acid did for me. It changed me. You revealed your true self on that bridge. Just like the acid peeled away the surface to reveal my true self underneath.