PHOTO BY PAM LUU Melissa Terrell cried tears of joy at Barrel & Flow. The chef and her 13-year-old son, Anthony, who was diagnosed with nonverbal autism at age 4, were at the August beer festival selling homemade apple butter, applesauce, banana pudding, jellies and baked goods. “It was amazing! He did so well,” Terrell says. “He talked to people...