(London) It was a sensation in the 70s when the Tate was forced to close a new exhibit, just four days after it was opened, when it was almost wrecked by an overly exuberant public.

Nearly 40 years on, Robert Morris's Bodyspacemotionthings has lost none of its potential for danger after clocking up a string of casualties during a special reappearance at Tate Modern this summer. The artwork, in which participants are invited to negotiate see-saws, a tightrope and other obstacles, left 23 people needing first aid in just over week.