I have been here a few years, but I decided this winter while staying in a hotel in the center that I would do the open bus tour thingy. It was an experience of a city crumbling, but aside from that the bus was taking itself through La Boca when we passed a group of children. The next thing I know a sizeable stone hit me directly below the eye pretty hard. I looked back to shout "pesky kids" but actually seen that it was a man who was probably in his mid-thirties who had done it. He was on his own. A cm higher I may have been in trouble. What a dick.