One instance of mockery on the working class is conveyed when the most loyal and hard working animal, Boxer the horse, had collapsed and was immediately sent to the slaughterhouse. This satirical allegory fable is a very effective way for people to understand the true meaning of the pessimistic ideals of communism.
This demonstrates how the farm animals are extremely gullible, and controllable. For example, Orwell presents most of the animals as not being very intelligent, and that Napoleon and the other pigs take full advantage of this Animal Farm.
The first technique, satire, is displayed throughout the book. Anyway the first troubling event is when the hens eggs are taken. Equality was reached in his dream.