when i lived in montreal, i had a roommate, mariano sartorio molochnik (his father was polish) who pined for buenos aires, played backgammon constantly, played such lovely music on his guitar, suffered from epilepsy, and began to teach me to tango, usually when we had had too much to drink. if anyone knows where mariano is, i would love to know. i will in any case learn to tango in his honour.