Took a walk around Trafalgar square today to find that an organised pillow fight was to take place. The first image shows the fight underway, and the second image the resultant mess of kapok and feathers which drifted out of the square and into the surrounding streets.
Around 6pm. they had to close the square and begin the mammoth clean up operation. The debris had also choked the fountains, and covered the people with feathers and kapok.
It could not have been healthy as the air in the area was full of particles.