Though he's not onstage at the moment, comedian Pablo Francisco is already warming up. A little after 8 a.m. Thursday, Francisco is on the phone telling dirty jokes, making fun of himself and impersonating celebrity actors Michael J. Fox and Shia LaBeouf. Francisco brings a fresh and diverse persona to comedy, with sound effects, slapstick impressions and fast-paced non-sequiturs peppering his routine. Thursday through Sunday evening, the Chilean-American comedian will perform at the Punchine with Matt Claybrooks, Sean Savoy and Ashley Fils-Aime opening. Originally from Tuscon, Ariz., Francisco's career choices didn't always go over well with his parents. He recalled delivering pizzas in