Never Kill a Boy on the First Date

(Interesting Quotes courtesy of http://www.swlink.com/~casper/buffy.htm)

Buffy: We haven't been properly introduced. I'm Buffy, and you're history!
Giles: Poor technique Prioritizing sub par... Execution was adequate, but a bit too bloody for my taste.
Buffy: Giles, don't mention it. It was my *pleasure* to make the world safe for humanity again.
Giles: I'm not saying that your methods are without merit, it's, uh, y- you're expending too much time and energy. It should simply be: plunge, and move on. Plunge and... Hello.
(they see a ring)
Buffy: Oh, that's great! I kill 'em, you fence their stuff.

Buffy: Ooo, two points for the Slayer, while the Watcher has yet to score!

Buffy: Right. I'm sorry, you're right. Vampires Oh Does this outfit make me look fat?

Xander: … So, Buffy, how'd the slaying go last night?
Buffy: Xander!
Xander: I mean, how'd the *laying* go? No, I don't mean that either.

Buffy: Well, we'll be ready whenever it is.
Giles: Which is tonight.
Buffy: Tonight, okay... Not okay! It can't be tonight!
Giles: My calculations are precise.
Buffy: Nuh! They're bad calculations! Bad!

Giles: Alright, I-I'll just jump in my time machine, go back to the twelfth century and ask the vampires to postpone their ancient prophecy for a few days while you take in dinner and a show.
Buffy: Okay, at this point you're abusing sarcasm.

Giles: If your identity as the Slayer is revealed it could put you and all those around you in grave danger.
Buffy: Well, in that case I won't wear my button that says, 'I'm the Slayer, ask me how!'
Buffy: What was I supposed to do? Say to Owen, 'Sorry I was late, I was sitting in a cemetery with the librarian waiting for a vampire to rise so I could prevent an evil prophecy from coming to pass?'
Xander: Or flat tire?

Cordelia: Ooo! Hello, salty goodness! Pick up the phone, call 911. That boy is gonna need some serious oxygen after I'm through with him. (after seeing Angel)
Angel: Buffy.
Buffy: Angel.
Cordelia: Why is this happening to me?

Xander: Look, we gotta get to, uh... Uhhhh. We thought it'd be fun if, uh, we made this a double date!
Buffy: I didn't know you guys were seeing each other.
Willow: Oh, yeah, well, we knew it would happen eventually, so we figured, hey! Why fight it?

Buffy: Gee, that's so nice of you to ask, but Owen and I were, well, sort of... Owen and I.

Buffy: What happened?
Giles: Uh, two more of the brethren came in here. They came after me. But I was more than a match for them.
Buffy: Meaning...
Giles: I hid. Uh, this, uh, chap was good enough to bunk with me 'til they went away.

Andrew: He is risen in me! He fills my head with song!
Andrew: Pork and beans. Pork and Beans!

Owen: Did you see that? He tried to bite me! What a sissy!

Giles: I was ten years old when my father told me I was destined to be a Watcher. He was one, and his, uh, mother before him, and I was to be next.
Buffy: Were you thrilled beyond all measure?
Giles: No, I had very definite plans about my future. I was going to be a fighter pilot. Or possibly a grocer, well, uh... My father gave me a very tiresome speech about, uh, responsibility and sacrifice.
Buffy: Sacrifice, huh?

Giles: Buffy...
Buffy: I blew it!
Giles: I have volumes of lore, of prophecies, of predictions. But I don't have an instruction manual. We feel our way as we go along. And, I must say, as a Slayer, you're, you're doing... pretty well.