Tim loses his rag with a Sci-Fi shop customer in Spaced:
Tim: You are so blind. You so do not understand. You wern't there at the beginning, you don't know how good it was - how important. This is it for you: a jumped up firework display of a toy advert. People like you make me sick, what's wrong with you?
[Cuts to a scared little boy]
Tim: Now, I don't care if you've saved up all your 50p's, ok? Now take your pocket money, and get out... What a prick.
Gareth Keenan thinks he can win over Tim's new girlfriend in The Office (series 2):
Gareth: I can't believe you'd choose him over me for a start.Dawn-obsessed Tim meets Wernham Hogg's favourite computer geek in The Office:
Tim: And why's that Gareth?
Gareth: Well look at your huge nose and your funny haircut... You look like a Fisher Price man
IT geek: You know Bruce Lee's not really dead, don't you? Yeah, it's in a book. What he did is faked his own death so he could work undercover for the Hong Kong police, infiltrating drugs gangs and the triads.
Gareth: Yeah I reckon that's true.
Tim: Yeah I reckon that's true because if you were going to send someone undercover to investigate the triads you'd probably want the most famous Chinese film star [Tim and his girlfriend laugh]
IT geek: Gone off Dawn now have you?
From Blackadder Goes Forth, while the boys are trying to entertain themselves before the big push:
Lieutenant George: So, what shall we do now then?
Private Baldrick: Shall I do my war poem?
Captain Blackadder: How hurt would you be if I gave the honest answer which is: no, I'd rather french-kiss a skunk?
Private Baldrick: So would I, sir.
Alan Johnson from Peep Show, on his medicinal techniques after making someone cry after their business presentation:
Sophie: I hope you two are pleased with yourselves, you made her really upset you know?
Johnson: Hey I'm just the doctor, I don't make the needles sharp!
Stella and Charlie from the League of Gentlemen - After arguing about whether the pieces are cheese or pie in Trivia Pursuit:
Stella: Go on, give me my question!
Charlie: I'll give you your question you stupid twat!
This 'put-downs' angle is one I'll return to time and again, I'm sure