Quote from Joey in The One with the Cuffs
Joey: Well, it's good you got out, before she blew up like that Vesuvius. Ross: The volcano? Joey: And speaking of volcanoes, man, are they a violent igneous rock formation. Rachel: What? Joey: Yeah. Lava spewing, hot ash. Of course, some are dormant. Monica: Why are you talking about volcanoes all of a sudden? Joey: We can talk about something else. What do you want to talk about? Vivisection? The vas deferens? The Vietnam War? Monica: Oh. Did anyone see that documentary on the Korean War? Phoebe: Oh, God. Korea's a beautiful country. Ross: With such a sad history. Chandler: Could there be more Kims? [Joey laughs at Chandler's joke, looks disappointed]