Archaos were the mad, bad and dangerous troupe who revolutionised circus back in the Eighties and early Nineties – their antics with juggling chainsaws, raunchy Galllic attitude and mayhem with motorbikes is celebrated with a pop-up exhibition at the Bargehouse in the Oxo Tower Wharf on the South Bank for just three days ending on Sunday. It’s also a tribute to the genial genius behind the troupe, Pierre Bidon, who died earlier this year, at the age of 56.