Giles:  You have responsibilities that other girls do not.

Buffy:  Oh! I know this one! ‘Slaying entails certain sacrifices, blah, blah, bity blah, I’m so stuffy, gimme a scone.’

Giles:  It’s as if you know me.

Buffy the Vampire Slayer, Season 2: Episode 4 – “Inca Mummy Girl”