How do the Staunton children, David and Caroline, react to the Christmas incident?

From the text:

At Christmas dinner, Leola was in tears. David was huddled up in a corner with a book he was not reading, and Caroline was rampaging through the house demanding attention for a doll she had broken. I joked with David, mended the doll so that it was crippled but in one piece, and tried to be decent to Leola. Boy told me that if I had to behave like one of the bloody saints I was always yapping about, he wished I would do it somewhere else. I unwisely told him to take his Abdication like a man, and he became silently hateful and soured the food in our stomachs. He announced that he was going for a walk, and he was going alone.