If anyone had ever told me that one day I would admire a chimpanzee for facing adversity, I would have thought they were crazy.
How did you construct your door? Wood with spray foam intterior? Did you make it yourself?
I would have loved to see Snowball come back, apparently as would most people. But that is only while looking at the literal sense of the book. If you look at the book on a deeper level, when you notice the satire and allegory, you will see that Snowball had to leave and not come back, for he represents Leon Trotsky, a man who was driven out of Russia by Joseph Stalin (Napoleon).
This reflected Orwell's view that events in Russia following the Revolution of 1917 had followed an unwelcome path, and that the egalitarian socialism he believed in had there become a brutal dictatorship built around a cult of personality and enforced by terror and lies. Orwell wrote, "All people who are morally sound have known since about 1931 that the Russian régime stinks".  Squealer as the chief propagandist of the regime is early prominent in the story and Orwell delineates the path down which small lies lead to bigger lies. Orwell regarded propaganda as a feature of all modern governments but especially prominent in totalitarian regimes, which depended on it. In The Prevention of Literature (1946) he described 'organised lying' as a crucial element of totalitarian states. 
“Was it that old guy, Steve, who beat the sow?” says Juan. He’d been working at a Premium barn nearby, where he spent his days extracting beakers of semen from boars and his nights washing the stench off his skin.
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