Season 2 Episode 5
Episode aired october 13, 1997
buffy and cordelia attend a frat party where they are offered as human sacrifices to a reptile-like creature.
the term 'patrolling' is first used. prior to this, buffy's graveyard exploits are referred to as hunting. furthermore, this marks the first time that she patrols with no specific purpose. from this point on, she will patrol nightly..