In the book of Red Dwarf (and possibly the series) there is a bit where Rimmer creates a clone of himself to provide a more erudite, intelligent and less disgusting companion than Lister. The idea of the story is that Rimmer believes that he is a nice guy and assumes that they will form a perfect team - but of course we all know that he's a total arsehole and that it is inevitable that they will hate each other cos a) Rimmer hates everyone and b) everyone hates Rimmer. The bit that stuck in my mind is where Rimmer inevitably ends up in a position in which he is lying to Lister, pretending that they are getting along perfectly but then the cloned Rimmer shouts something to him while he is in the middle of claiming that it's all peachy and he is unable to prevent himself from responding by shouting "Shut your foul whining you filthy piece of distended rectum" - a particularly vicious and graphic insult that gives a fairly strong clue that possibly things are not working out quite as well as implied.
