A four year old boy and his mother were visiting at our house.  It was time to go and he was asked to put away the toys he was playing with, and he said “No.”  Not only would he not pick up, but he would not put down the marbles he had in his hand.  His mother asked him repeatedly to put the marbles down, but he just ignored her and held them tightly.  His mom tried asking nicely, reasoning with him, promising she would buy him the same toy from the store, telling him she would tell his dad when they get home, counted to three, told him she…