What event turns the animals world upside down? (Chapter 10 of Animal Farm)
The pigs' transition to their humanesque lifestyle becomes nearly complete when the other animals are stunned to find Squealer walking upright on his hind legs. Following closely behind came Napoleon, also on only his hind legs, "majestically upright" with his guard dogs surrounding him. Next came the sheep, who "burst out into a tremendous bleating of-- "Four legs good, two legs better!" When Clover asked Benjamin to read her the Commandments, she found they had been changed once again. Now the single Commandment simply read "ALL ANIMALS ARE EQUAL, BUT SOME ANIMALS ARE MORE EQUAL THAN OTHERS." Later, when Napoleon and his pigs join the humans at the dinner table for a shared meal, the other animals discover that it was now "impossible to say which was which."