Grissom: Hey, do you want some help?
Warrick (smiles): Welcome back.
Grissom: Whatcha ya got?
Warrick: I'm just following a lead off a serialized butt implant.
Grissom: I missed Las Vegas.
Warrick (laughs): What're you doin' here?
Grissom: I'm avoiding the paperwork and mail that's piled up on my desk.