Several weeks ago VI asked about Mexican hot dogs smothered in torta-style condiments as described on the SF board. Since I will be in Santa Rosa, taco truck central, later this week, I have been corresponding with the great chowhounds over there. Melanie Wong mentioned the perritos, which reminded me that you can find them at Dona Torta on Ashland. They look like a sloppy but satisfying meal. I've never tried.