He was seen a couple of times during the feast. First, when guests were being served beetles (which were to be eaten by sucking out the gooey innards). The merchant was confused to find that Willie Scott wasn't participating in the feast, she feebly replied, "I had bugs for lunch." This amused him and he proceeded to eat, much to Willie's revulsion. He even belched.
Later, he delightedly pointed out desert was being served ("chilled monkey brains"). He was shortly seen scooping the brains out and eating them.