Finger Food or a Sit Down Meal

I wonder how much time and effort Congress has devoted to devising new ethics rules. Apparently many of the lobbying firms are cutting back the food served at their events because the new rules specify that only finger food can be served instead of the full course meals that had been the typical fare at these events. Are there not more serious topics for Congress to address? Do Congressmen need detailed lessons on how to preserve one's integrity?