Avon's vicious snark is always funny.
Vila: When you get Zen [the computer] working, ask him to prescribe something for a headache, will you? I've got this shocking pain right behind the eyes.
Avon: Have you considered amputation?
Blake: Does it support any intelligent life?
Avon: Does the Liberator?
Jenna: I thought they [alien plants] died if they left the planet?
Cally: No. You have to talk to them.
: That's like talking to Vila. A complete waste of time.
: How long a list would you like?
Gan: Can't find Orac [a computer]. Even tried calling his name.
: Oh, I'm sorry I missed that. That's the kind of natural stupidity no amount of training could ever hope to match.
Avon: This happens to be the most sophisticated lifeform that it has ever been my good fortune to come across. Present company not excepted.
Tarrant: Life? But it looks like...
: A rock. Yes. Well, when you live on the permanent dark side of a planet, nobody cares too much what you look like.
Largo: [...] I could make you an offer.
Avon: They have a sentimental value for me.
Largo: Oh, family heirlooms, eh?
Avon: No, I'm just sentimental about money.