I don't remember enough to help you with the Boxer questions either, but the final irony is that it is impossible to tell the pigs from the humans at the end of the book. The pigs lead the rebellion to free the animals, and end up enslaving the other animals more than the humans did. They adopt all the vices that they saw the humans had - clothes, sleeping in beds, drinking, etc.
Just a few thoughts about Boxer that might help --he was so loyal, and he worked himself to death for the group. , and in the end he is betrayed by being sold to the glue factory or whatever, so the one who was the most loyal is betrayed the worst.
teaching it awhile ago