SIX THE CANTEEN WAS THE WARMEST ROOM at the Grove. Piping-hot radiators lined the walls, and the benches closest to them were always filled first. Lunch was the busiest meal, with staff and patients eating side by side. The raised voices of the diners created a cacophony of noise, born from an uncomfortable excitement when all the patients were in the same space. A couple of jolly Caribbean dinner ladies laughed and chatted as they served up bangers