two words: Avon's sarcasm.
Some Blake's 7 quotes ...
Avon: Logic says we're dead.
Blake: Logic has never defined what dead is.
Cally: On my planet there is a saying -- the man who trusts can never be betrayed, only mistaken.
Avon: Life expectancy must be fairly short among your people.
Blake: Do you agree?
Avon: Do I have a choice?
Blake: Yes.
Avon: Then I agree.
Avon: I have never understood why it is necessary to become irrational in order to prove that you care, or why it should be necessary to prove it at all.
Vila: I think I have just made the biggest mistake of my life.
Orac: It is unlikely. I would predict there are far greater mistakes waiting to be made by someone with your obvious talent for it.
Vila: I've got this shocking pain right behind the eyes.
Avon: Have you considered amputation?
Avon: I have never taken things on trust. I see no reason to make an exception in the case of a mysterious area of danger.
Avon: Staying with you requires a degree of stupidity of which I no longer feel capable.
Blake: Now you're just being modest.
Blake: What went wrong?
Avon: I relied on other people.
Avon: It would be stupid to be shot up by our own allies.
Vila: Not only stupid -- painful.
Avon: Waste any more time and you won't get any older.
Avon: On Earth it is considered ill mannered to kill your friends while committing suicide.
Blake: (Finding a frightening looking piece of hardware on an alien spacecraft) Handgun?
Avon: It's a bit elaborate for a toothpick.
Blake: Depends on how elaborate their teeth were.