This last week the Mayor of London, Boris Johnson, found himself on Twitter, asking the Twiterarti to send him questions under the #askboris hashtag.
As is often with the net, this brilliant endeavour to engage everyday citizens with the political process and opportunity hold our elected politicians to account was soon hijacked by thoughtless, inane, miscreants who ought to be ashamed of themselves.
But at least you now know why crabs walk sideways…