“Pearls Before Swine” mastermind Stephan Pastis is off on another world tour to give talks, meet the fans, and to sign the new “Pearls” book “Pearls Falls Fast,” and his latest Timmy Failure book,  “Timmy Failure: Now Look What You’ve Done.”  We talk about life on the road, how NOT to endear yourself to theme-park patrons, and other assorted ramblings!