He is very shy ,can't do activities in public or infront any others. He become so angry when his any demand is not fulfil and start throwing things, hitting other, and soon starts crying. pleas tell me how can I control this situation without fulfil his unnecessary demands of chocolates and other? And also tell me how to make him calm as when he become angry or any demand is not fulfil he start crying and also start shivering. Pleas help me