2x01 When She Was Bad - " the infamous sexy dance "

Buffy and her mother, Joyce, are at a mall discussing Buffy’s desire to buy a revealing dress (which, in Joyce’s opinion, makes Buffy look like a streetwalker, although Buffy tries to correct her, saying “a thin streetwalker”).

Joyce and Buffy divisé, split up to each do an important errand before the mall closes. On her way to the store, Buffy sees a guy wearing a cowboy hat romancing a girl, but also notices he has no reflection in a nearby mirror. She follows him upstairs, scares the girl off and fights with him until he runs away.

She returns to her mom, but has forgotten about her errand,...