Nah, it's a tenuous (borderline irrelevant) reference to the MP expenses thing.
I think the joke is that you can't see any of his features because of the black square. And you can't 'see' that someone has been to prison.
I don't know, I'm still sorting of working it out myself.
( ,
Sat 20 Jun 2009, 20:33,
archived)
I don't know, I'm still sorting of working it out myself.