I lived, worked and studied in Costa Rica from 1984 to 1989. Ostensibly, I was there to study Mathematics at the University, and indeed I graduated with an MSc. in Mathematics supervised by Ricardo Estrada (check that page, he even advertises me as one of his past students). And yes, I do have a nine page thesis that I wrote and defended in Spanish somewhere in my files, on a proof and extension of one of Ramanujan's theories. But mathematics is a pretty lonely endeavour, and what drew me back to Central America (after the first visit, which was more of an accident), was the life and politics. The time I lived there was extremely interesting (for me as an outsider, though also painful and tragic for it's inhabitants) because of the various wars that were largely fuelled by US regional hegemonic interests (of the usual corporate suspects and individuals) and neglect (of the politicians and public) - the Contra war in Nicaragua, the full-scale guerrilla wars in El Salvador and...