Mayb you can try to bring your son to see a physcologists? (dont't know if correct spelling)? And see why is he behaving this way?
Actually, if for me, if he cry like that in the CC, I will just leave him there, let the teachers handle......unless the teachers really cannot handle then the parents will step in
You cannot continue to give in to your son's demand....he got to have boundaries to know when is the limit tht he can press on your button