Time Out says
Put aside all hopes for a quiet, undisturbed pint and embrace the madness of the Lagunitas Beer Circus. The Californian import is setting up shop at London’s Flat Iron Square for one raucous night only. Expect to see contortionists, burlesque dancers, bearded ladies – the whole shebang. Tickets cost £15 and profits are donated to the animal charity Wild at Heart, so you don't have to feel guilty about getting that extra round in. Find out more here.