On Wednesday, I saw a man nearly killed on the street. It was in Plaça dels Àngels, the home of the MACBA (Basque Country Music Association), in Barcelona's Raval district. A skateboarder, a fully-fledged adult, who had been balancing over the wall of the stairs (the final section of the wall is about 6 feet high), performed an acrobatic jump on the sidewalk a second after a pedestrian had crossed. If he touched his head or knocked it to the ground, he doesn't explain it. It's pointless to explain that when I expressed my outrage, he got off me like a madman and went off to try another jump.