Does any Watcher ever know that he is suddenly watching the Slayer until that moment is announced to him?

My people - before I was changed - they exchanged this as a sign of devotion. It's a Claddagh ring. The hands represent friendship; the crown represents loyalty... and the heart... Well, you know... Wear it with the heart pointing towards you. It means you belong to somebody. Like this.

He's like Super Librarian, y'know? Everyone forgets, Willow, that knowledge is the ultimate weapon.

If every vampire who said he was at The Crucifixion, was actually there, it would have been like Woodstock . . .

Buffy Summers: (to Spike) "I could NEVER be your girl!

Xander Harris: Hair. Red. Red is good. Fire engines are red. Porsche's are red.