Warrick: Every time this chick calls Tom, somebody gets shot.
Grissom: It's like thermite.
Grissom: When you combine two seemingly harmless elements, aluminum and rust, press them together, add heat, it creates an explosion so hot it'll burn through steel. Powerful but uncontrollable. It burns and burns until it burns itself out, finally consuming both elements.
Sara: I guess some people just shouldn't be together. (looks towards Grissom)