My son is 10 and a half months old and the other day he started screeching. He screeches when he is happy, frustrated or angry. He has started in his high chair while eating dinner the last two nights. He seems quite happy but just eats and screeches. It is really loud and to be honest annoying. We tried ignoring the screeches, he just continued. We tried telling him in a firm voice, not yelling back, that it was unacceptable behavior. Nothing has seemed to be working. Today he started screeching for everything. How do I address this so he stops?
