Let the fun of this Spring of Our Discontent begin! 

Office workers face chaos next week with swaths of London in security lockdown for the G20 summit and warnings that bankers will be targeted in a series of protests aimed at causing maximum disruption.

Staff in the City are being advised to dress down and postpone non-essential meetings amid fears that they will be forced to run the gauntlet of protesters. Thousands of G20 Meltdown campaign posters show a mannequin wearing a suit being hanged, while an anarchist website has the slogan: "Burn a banker!"

Details of direct action, gleaned from chatter on anarchist websites and meetings attended by the Observer, include a rumoured plan to block the Blackwall Tunnel and cause a security scare on the London Underground by leaving bags unattended on trains. There is also speculation that protesters will drive a tank to the ExCeL conference centre in London's Docklands, where the G20 are meeting, and attempt to harass politicians with wake-up calls to their hotels in the middle of the night. None of the organisers of the peaceful demonstrations say they are aware of any such tactics.

http://www.guardian.co.uk/business/2009/mar/22/g20-anti-globalisation-protests

Which is too bad, because they sound good.