Xander: Red alert! Where’s Buffy?
Giles: Uh, she, she just stepped out. Her, her father came by early. He, he needed to talk to her. W… where are your other clothes?
Xander: Oh, don’t I wish I had the answer to *that* question.
Willow: Xander kinda found himself in front of our class not wearing much of anything.
Xander: Except my underwear.
Willow: (laughs) Yeah! It was really… (looks at Xander) …bad. It was a bad thing.
Xander: ‘Bad thing’? I was naked. ‘Bad thing’ doesn’t cover it.
Willow: Everyone staring? I would hate to have everyone paying attention to me like that.
Xander: With nudity!
Buffy the Vampire Slayer, Season 1: Episode 10 – “Nightmares”