In the pond in the park the fountain stopped. Swans slid across to investigate. A van crawled towards the pond's edge and stopped next to the fisherman. Three men in overalls all different shades of orange exited the van and unloaded a cement mixer, a spade, a pneumatic scoop and four yellow plastic sections of fence. While one of them plugged the cement mixer in at the cafe and mixed the cement the other two fenced off a small area at the edge of the pond and attacked the pavement with the pneumatic scoop. Dust settled on ice creams. Dogs conferenced. Picnics succeeded. The scooping men returned the scoop to the van and took out a tarpaulin-covered box attached to a black pole. They carried it to the fenced off area and set the pole in the ground with the box on top. The scoopers held it upright while the cement man cemented the base. When this was done he used his spade to flick the rubble from the hole into the pond. All three stood and inspected the box on the pole, looked at each other, and removed the tarpaulin. Children screamed. The box had a coin slot at the top, a note slit in the middle, and a change tray at the bottom. They loaded the fence and the scoop and the mixer and the spade and themselves into the van and drove away slowly with the hazard lights blinking. A woman in a Nirvana t-shirt approached the box and put 50p in the slot. The fountain came back on.