The part where he's pure evil and kills randomly was an oversight.

Goodbye Iowa

Buffy: Maggie tried to kill me.
Anya: It didn't work, but they're all upset anyway.

Riley: That's hostile 17.
Spike, trying to put on a fake accent: No, I'm just a friend of Xaannderr's. Bugger it. I'm your guy.
Buffy: This is Spike. He's um.. It's a really long story, but he's not bad anymore.
Spike: Hey! What am I, a bleeding broken record? I'm bad, it's just I can't bite anymore. Thanks to you wankers.

Adam: What am I?
Kid: You're a monster.
Adam: I thought so. What are you?
Kid: Me? I'm a boy.
Adam: A boy. How do you work?
Boy: I don' know. I just do. (points to the skewer coming out of Adam's wrist) What's that for?
(Adam looks at it and smiles)

Buffy, watching Roadrunner cartoons: That would never happen.
Willow: Well, no, Buff, that's why they call them cartoons, not documentaries.

Willow: Well, look who's cranky bear in the morning.
Giles: Yes I can't imagine why I didn't sleep well in my beach ball.
Anya: Every time you moved it made squeaky noises. It was irritating.
Giles: Really. I'm surprised you could hear it over your Wagnerian snoring.
Buffy: Okay, you guys, could we not please? Everything's screwed up enough without you two doing scenes from my parent's marriage.

Anya: And after everything you've been through with Angel. You really should get yourself a boring boyfriend. Like Xander. - You can't have Xander!
Buffy: That was the idea. Riley was supposed to be Mr. Joe Guy. We were going to do dumb things like hold hands through the daisies going "tra-la-la."
Willow: Poor Buffy. Your life resists all things average.
Anya: So dump him. But you can't have Xander!
Buffy: I'll try and remember that. It's too late anyway - I'm already at the "I hurt when he hurts, I smile when he smiles" stage.
Anya: I hate that part.

Buffy: You guys research the Polgara demon. I want to know where it is. When I find it I'm going to make him pay for taking that kid's life, I'll make him die in ways he can't even imagine. ... That probably would have sounded more commanding if I wasn't wearing my yummy sushi pajamas.

Willow: I had so much fun the other night, those spells.
Tara: Yeah, that was nice.
Willow: I hope you don't think that I just come over for the spells and everything. I mean, I really like just talking and hanging out with you and stuff.
Tara: I know that. But you wanna do a spell.
Willow: Yeah. But only because it's really important. There's this..
Tara: No, you don't have to explain, I don't mind, really. I've been thinking about that last spell we did... all day.

Buffy: Giles, Anya, keep researching. Xander, you and I are going undercover.
Anya: Hey! Remember before. No Xander! Not in a boyfriend way or a "lead him to a certain death" way.
Buffy: He's the only one with military experience.
Anya: It's not like he was in the 'Nam. He was GI Joe for one night.
Xander: It's okay, Anya. I've backed up Buffy before.
Anya: Can't you do something else to help them? Like Xerox handouts or something?

Xander in the Initiative: I totally get it now. Can I have sex with Riley too?

Xander: Quick, pretend to make out with me.
Buffy: Wait, what are you talking about?
Xander: Well, I, uh, you know. In the movies the guy and the girl have to hide.
Buffy: Please, could you possibly draw more attention to us?? This is the Initiative Xander. Military guys and scientists do not make out with each other.
Xander: Well maybe that's wrong with the world. Ever think about that?

Buffy: Why? Spell it out for me! I feel an attack of dumb blonde coming on.

Adam: I've been thinking about the world. I wanted to see it, learn it. I saw the inside of that boy, and it was beautiful, but it didn't tell me about the world. It just made me feel. So now I want to learn about me. Why I feel? What I am? So I came home.

Adam: Mother created you too.
Riley: Maggie's not my mother! I have a mother! A real--
Adam: A birth mother. Yes. But after you met Maggie, she was the one who shaped your basic operating system. She taught you how to think, how to feel. She fed you chemicals to make you stronger - your mind and body. She said that you and I were her favorite children. Her art. That makes us brothers. Family.

Willow: There's gotta be a flaw.
Buffy: I think the part where he's pure evil and kills randomly was an oversight.