What is Dr. Walter Bishop up to in this scene? We actually don't wanna know.
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Dr. Walter Bishop is pretty much a genius. A sort of insane, oft-kilter genius, that is.
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Fringe Season 1 Episode 12 Quotes

Peter: I don't underestimate my father, by the way. I understand him. Sometimes more than I want to. Look, if I let him talk to that woman, she's just going to accuse him of killing her daughter, which is something he didn't do.
Olivia: Then why not just let them meet?
Peter: Whose side are you on anyway?
Olivia: I know what it's like to live with something unresolved. That's all.
Peter: Congratulations. You just described the entire planet.

(to Olivia) I wanted to say that I've never had him in my life, Walter, and now, thanks to your insane freakshow of an operation, I do, have him in my life. And I think that I was a little scared.

Peter