Xander: [as Xander walks in on Spike and invisible Buffy] Spike? What are you doing?
Spike: What am I-... What does it look like I'm doing, you nit? I'm exercising, aren't I? [starts doing "push-ups"]
Xander: Exercising? Naked? In bed?
Spike: A man shouldn't use immortality as an excuse to let himself go. You gotta be fit for killin'...
Xander: Ya-huh.
Spike: What am I-... What does it look like I'm doing, you nit? I'm exercising, aren't I? [starts doing "push-ups"]
Xander: Exercising? Naked? In bed?
Spike: A man shouldn't use immortality as an excuse to let himself go. You gotta be fit for killin'...
Xander: Ya-huh.
Xander : [as Xander walks in on Spike and invisible Buffy] Spike? What are you doing?
Spike : What am I-... What does it look like I'm doing, you nit? I'm exercising, aren't I? [starts doing "push-ups"]
Xander : Exercising? Naked? In bed?
Spike : A man shouldn't use immortality as an excuse to let himself go. You gotta be fit for killin'...
Xander : Ya-huh.
http://www.tv-quotes.com/shows/buffy-the-vampire-slayer/quote_20402.html