Guest star Joel David Moore (Colin Fisher) previously appeared as the team's graduate student tech in "The Crank in the Shaft."

Ratings: 9.5 million viewers

Valerie Daniels: You are far more ripped under those school-boy duds than one would think. Aren't you, Dr. Sweets?
Sweets: Yes.

Brennan: (about Booth) The Vicodin seems to be working. He claims it makes the furniture feel friendly.

Bones: Booth gets needlessly protective sometimes. I have no idea why.
Agent Perotta: You really don't, do you?
Bones: No.

Sweets: Elegant weapon. For more civilized age.
Brennan: Actually the age in which swords were the primary infantry weapon were some of the most barbaric in history.
Perotta: It's a line from Star Wars.
Sweets: Obi Wan Kenobi.
Brennan: What language is that supposed to be?

Fisher: Okay, I admit. I'm a geek.
Brennan: You're Greek?
Angela: No, geek, sweetie.
Fisher: I love it all, Star Trek, Star Wars, Buffy, Xena, Akira. I even watch Fringe.

Agent Perotta: Booth was right - you're like a portable polygraph.
Sweets: You didn't mean that in a good way though, did you?

Sweets: May I call you Bones in future moments of shared camaraderie?
Brennan: Don't call me Bones.
Sweets: Sure about that, Bones?
Brennan: Please, don't.

Brennan: What's wrong?
Booth: Nothing. Come on in. How about some coffee? Caribbean bean!
Brennan: You hurt your back again?
Booth: Nope. No, no, no. It's that obvious, huh?
Brennan: Your gait suggests you restrained your anterior longitudinal ligament.
Booth: Yeah, well, I blame the couch, all right? I fell asleep last night watching the game. Look, I figured you fixed my back last time. Really, I just thought that maybe you could fix it again. So use your little magic knuckles and hit it up, and we're ready to go.
Brennan: Booth, if this has become a recurring problem, you should see a specialist.
Booth: Right. I get it. All disclaimers apply. Here we go. Hit the back. Chop, chop. We've got a case!

Colin Fisher: I drug your ghost across the country and we plotted out my death. In every city, memories would whisper, "Here is where you rest."

Fisher is quoting a line from the Bright Eyes' song "The Calender Hung Itself."

Fisher: I love it all, Star Trek, Star Wars, Buffy, Xena, Akira. I even watch Fringe.

Fisher is referencing the sci-fi FOX series Fringe, often compared to The X-Files.

Fisher: I love it all, Star Trek, Star Wars, Buffy, Xena, Akira. I even watch Fringe.

Fisher is referencing the fantasy series Buffy the Vampire Slayer. This breaks the fifth wall, since David Boreanaz (Booth) also has a significant role on Buffy.