Answer:his desire to keep Snowball’s windmill plans hidden from the other animals
Explanation:According to the given excerpt, Napoleon was always against the plans for the windmills and even though the other animals were fascinated by it and went over to see the plan, Napoleon stayed away until one day when he went to where the plans were, urinated over them and walked away.
His actions were planned to keep Snowball's windmill plans from other animals.