If you go to any ethnic restaurant in San Francisco-- hell, probably most of the country-- you'll find that whatever type of restaurant, be it Japanese or French or Middle Eastern, that the people doing the grimy, dirty jobs like dishwashers are all Hispanic. Over the weekend, Harlan and I went to a really good Mexican restaurant and halfway through dinner I began to wonder who does all the grimy work at a non-divey Mexican Restaurant? Poorer Mexicans? Guatemalans? Ethiopians? Laid off dot-commers?