R.W.
I would not give it back no matter what he does. He is to old for it. Give him crackers to chew, graham crackers, vanilla wafers, etc...I would put them in a container for him and tell him they are his special foods. He is plenty old enough to understand and to not be chewing on everything. He may also be lacking something in his diet. My nephew used to chew on everything and my sister in law had to give him extra vitamins and the chewing stopped. Also the doctor told her to give him a cold teething ring to chew but do not give the pacifier back..