Willow: I’m a blood-sucking fiend! Look at my outfit! 

Alfonse: A human. I should have smelled it right away. 

Willow: A human? Oh, yeah? Could a human do this? (She screams at the top of her lungs)

Anya: Sure. Yeah. Humans do that. Yeah. 

Alfonse: Yeah. Yeah, I think, yeah.

Buffy the Vampire Slayer — Season 3: Episode 16 — “Dopplegangland”