The Caller: If you have to ask, you're not ready to know yet.
The Caller: Deception can't go unrewarded.
The Caller: Wait till it goes national. ABC, CBS, CNN, UPN, you're gonna have the whole alphabet.
Stu: Nice try pal, go to hell.
The Caller: [Cocks gun] Now doesn't that just torque your jaws? I love that. You know like in the movies just as the good guy is about to kill the bad guy, he cocks his gun. Now why didn't he have it cocked? Because that sound is scary. It's cool, isn't it? (00:22:00)
Stu: You shoot the guy, and I'm responsible?
The Caller: It looked that way from up here.
Stu: I don't know what I did to you, but whatever it was I'm glad. Alright, I wish it had been worse, I wish you had fucking died.
The Caller: Yes! Finally some honesty.
The Caller: Come on Stu. You're a selfish guy. Just pick one of them and save yourself.
The Caller: That's it, the captain gets a bullet.
The Caller: You're in this position because you're not telling the truth.
Stu: No, I'm in this fucking position because you have A GUN.
Stu: So you'd just whack me for no particular reason?
The Caller: Oh, I've got plenty of reasons. And you keep giving me more.
The Caller: You are going to learn to obey me.
Stu: The first step to being noticed is being mentioned.
The Caller: Stu, if you hang up, I will kill you.
The Caller: At least now you'll die with a clean conscience.
Stu: No, you're the one who's gonna fucking die.
Stu: So you're an actor?
The Caller: Yes, one of your pathetic failed ones. You don't have to come find me and ruin me, I can't get work as it is. I've done some off-Broadway, some off-Manhattan, but that dried up. Now I wait tables, clean toilets, anything I can to make the rent. I'm a walking cliché.
The Caller: This guy is getting on my nerves.
Big Q: Voodoo on you-do, motherfucker, from Big Q to Big Stu.
The Caller: Get this man a seat on Oprah.
The Caller: Think about it. Why would a guy with a cell phone call a woman everyday from a phone booth?
Pamela McFadden: He said it was quiet.
The Caller: Pam, that's just stupid.
The Caller: Do you see the tourists with their video cameras, hoping the cops will shoot you so they can sell the tape to Goriest Police Shoot-outs?
Felicia: You better get out of there before he come back and kick yo' ass.
Answer: The pizza man is intended by the Caller to be a decoy so he can get away. The Caller sends the pizza man to the phone booth so that Stu will identify him later in the apartment, giving the police a convenient answer to the mystery while the real Caller escapes. In fact, at the end of the movie, the Caller comes to visit Stu - obviously he's not the dead pizza delivery man.
Phoenix