My son played Sir Studly in our recent community theatre production of "Once Upon a Mattress." He convinced me to join the chorus as a lady-in-waiting. Anticipating three months of quality mother-son bonding time, I readily agreed. I never dreamed, however, how physically demanding the constant singing, dancing and curtseying would be on my body. Even my cheeks hurt as the director constantly exhorted the cast to smile, smile, smile!