Keep off the art
Earlier this week, I wrote about Ai Weiwei's installation at Tate's Turbine Hall; visitors were being invited to walk across 100 million porcelain replicas of sunflower seeds.
A few days in, and visitors may now kneel beside the seeds, and possibly touch them - but may not walk across the piece because of concerns about the dust they might inhale.
A major point of this installation was the individual's reaction to moving their feet over it and the thoughts aroused by possibly crushing objects which have been individually hand-made and hand-painted by Chinese workers.
Standing or kneeling at the rim will be a bit like looking at an empty picture frame instead of one that actually has a picture in it.