On top of the hill opposite the Alhambra was the mirador de San Nicolás. It was full of crusties, juggling, selling handicraft, smoking and chilling. I went up there one evening to take photos of the city at night, and while I was there, two policemen appeared and started to walk slowly across the square.
Instantly the atmosphere turned incredibly hostile. All the crusties started jeering and whistling at the policemen. They didn't seem to mind too much, and carried on strolling past. Shouts and boos carried on until they got to the other side.
The square had been packed with tourists as well as crusties, but after the police had left, the tourists quickly dispersed.