Sandra walked into the living room, where her mother was relaxing in a corner chair, reading. “Mom, what’s up with Dad?” she asked. Looking up, Sandra’s mother replied, “Why do you ask, Sandra?” “Well, he’s at his desk, writing. He seems upset.” “Oh, he’s fine. It’s probably just his allergies,” she replied, the corners of her mouth turned up a little. Sandra drew her eyes together in a frown. “What’s he allergic to?” At this her mother’s smile broadened and she chuckled before answering… “Your father says he’s allergic to ‘happy… and sad.'” she replied.