chen yanzhen, age 16 plays trombone. chen had hardly spoken even to his parents when he wawas a sma child. but when he joined some years ago he became passionate about the trombone and gradually began speaking. recently, chen has been avoiding having lunch with his mother. instead preferring to go out to eat alone. he seems so desire more independence. on this day, he chose thaiphoon. chen's parents were startled that t their son's condition improved enough for him to go out alone. at the restaurant,, chen enjoye a lavish meal with three dishes, including two with shrimp, his favorite. the lunch which cost $24 is several times more expensive than everyone's criticisms of chen's order upset all day, chen remained concerned about hisis spending at lunch. chen dropped out of school in fifth grade due to the severity of his autism. ever since, his mother quit her jobb andnd began taking care of him. wang has shone some emotional instability lately. he refused to be accompanied by his mother to work and didn't want the volunte