From Fodor’s Spain and Portugal, 1960

"When a Spaniard passes a pretty girl on the street, chances are he will violate the law. Older than the castles of Spain is the custom of piropos, extemporaneous, neatly worded tributes paid to any attractive girl encountered on the street. Although piropos were outlawed by the government in 1926 when one outraged husband shot an ardent piropeador in Madrid, the practice has persisted."