Cathy and Cathy. Picture: Ryan Pfluger The pastries decided a dare. They sat there between all of us: four rugelach; four miniature candy scones; and three shiny, heart-shaped palmiers on a teal porcelain plate, like adorable buttered Valentines. And neither folks touched all of them. Sitting across from Cathy Guisewite, the 68-year-old inventor...