When my father’s family ate pork when he was a kid, his dad, who’d been raised kosher, called it “zebra.” When Hanis Cavin, who was “raised in a Jewish household where I couldn’t eat a cheeseburger, shrimp or pork,” opened his Temple-to-All-Things-Pork it probably never occurred to him to call it zebra. But Carnitas Snack Shack is named for Cavin’s pet potbelly pig, not the Mexican pork dish. And while the restaurant has some of the trappings of a casual roadside shed eatery, it brings far more than that to the table. Carnitas Snack Shack is never what it seems. Indeed, Cavin’s game of illusions is only deepened at the Shack’s slick new Embarcadero location (1004 North Harbor Drive).