Brennan: How did I get away? Graham got killed, I got away, how did I do that?
Booth: You know Bones, all those things that Caroline mentioned: the martial arts, the shooting, the assaults, you're just the type of woman that fights, you know, maybe they didn't expect it, maybe they thought some kind of magic could hold you.
Brennan: I don't believe in magic.
Booth: Exactly. You're a surprising woman, and that's sometimes enough to get away. (Brennan smiles)
Brennan: Why are you nice to me?
Booth: Because. Because they think they get away with it.
Booth: They burn their victim. They blow him up. They toss him in the ocean. They bury them in the desert. They throw 'em to wood chippers. Sometimes, you know, years go by, they relax. Then they start living their lives like they didn't do anything wrong. Like they didn't spend somebody else's life in order to get what they got. They think they're safe from retribution. You make those bastards unsafe. That's why I'm nice to you.
Brennan: I couldn't do that without you Booth.
Booth: Yeah. So, um, you should be a little nicer to me, huh?
Brennan: I really should.