Terminator: Katherine Brewster? Have you sustained injury?
Kate Brewster: Drop dead, you asshole!
Terminator: I am unable to comply.
Terminator: You are terminated.
Kate Brewster: How much did you take?
John Connor: Enough.
Kate Brewster: Well, this is the stuff we use to chemically neuter dogs.
John Connor: No, you shouldn't exist. We took out Cyberdyne over ten years ago. We stopped Judgment Day.
Terminator: You only postponed it. Judgment Day is inevitable.
John Connor: Tell her who I am.
Terminator: John Connor is the leader of the worldwide resistance and last hope for mankind.
Terminator: Your levity is good, it relieves tension and the fear of death.
John Connor: The T-X, can you find a way to destroy it?
Terminator: Unlikely. I'm an obsolete design.
Terminator: John Connor. It is time.
John Connor: Are you here to kill me?
Terminator: No. You must live.
Terminator: She'll be back.
Terminator: I'm back.
John Connor: Do you even remember me? Sarah Connor? Blowing up Cyberdyne? Hasta la vista, baby? Ring any bells?
Terminator: That was a different T-101.
John Connor: What, do you guys come off an assembly line or something?
Terminator: Exactly.
John Connor: Oh man, I'm gonna have to teach you everything all over again.
Kate Brewster: I hate machines.
Kate Brewster: Next time bring a clue, not a paintball gun.
Kate Brewster: Just die you bitch!
Answer: He was originally in talks - and by some reports, did appear on set for some period of time. While factual answers are in short supply (for obvious reasons), there appears to be a connection to his drug-use habits. For instance, he was checked into a hospital (LA Cedars Sinai) for what friends feared was a drug overdose in April 2001, and has been in and out of rehab over the years. Chances are the production company was unable or unwilling to get completion insurance.
Rooster of Doom