After some grump told Joanna Kettmann, wife of Santa Barbara Independent Senior Editor Matt Kettmann, to sit down instead of dancing during the Jack Johnson show on Monday at the Santa Barbara Bowl (when did sitting become the norm at concerts?), she headed backstage in search of friendlier vibes. That’s where Jack’s accompanying musician Money Mark spotted their son, Mason, doing his robot dance and invited the 4-year-old onstage for the last song of the night. Moral of the story? Cool things come to kids whose moms aren’t afraid to dance.