P.R. Baptista, Brazil's bicycle poet, reports on "World Naked Bike Ride"--and on cycling in Buenos Aires (population sixteen million, most of whom seem to be on the road at any given time and in a great hurry. Baptista calls it, "the empire of the automobile"):
The cyclist appears in this inhospitable environment as a type of quixotic figure to duel with each corner of the quick and deadly metallic machines.
I link to his blog using Babel Fish (free), an imperfect language translator, which renders the text in English.