Banksy had another moment of clarity while sitting around in his flat listening to Portishead and watching BBC News back in 2009; that the word "devolved" has two meanings.

Half a day of furious stencilling later and he created a work of art showing chimps (devolved humans) in the chamber of the House of Commons (which may devolve powers to regions), cleverly lampooning The Man in his trademark manner.

The artwork was named Devolved Parliament, because, you know, politicians and that.

Not really but if you say so.

The joke's on everyone apart from the ironic street artist, though, as this piece has just sold at a Sotheby's auction for very nearly £10m, so well done Banksy for once again saying something that seems like it says something.

No wait, there is a bit of the joke on Banksy, as he wasn't the one selling it.

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