Ah - very BLACK (nothing to do with racism!) humour - think Joe Orton (Loot! - although that is not considered as 'black' nowadays as it was when it first appeared, we have accepted it) and many others - in his latest 'Extras' - he manages to turn most of it against himself - and he is showing maturity - acceptance that his life is mostly shit and that most of the people in his life are utter selfish dickheads. In the Office HE was the biggest selfish dickhead.
I also just love how he manages to con people like Ronnie Corbett, David Bowie, Diana Rigg, 'Harry Potter' et. al. into clever cameo roles... :-)
Black humour can be described as the sort of thing that you are unable to stop watching (like a slow motion train wreck), even though you are almost throwing up with disgust, while at the same time almost unable to breathe from laughing too hard.... not for everybody's taste, l know - but also has very clever satire and parody ...