The stranger's interaction with Elisa at her garden is different from Henry's interaction with her at her garden. The stranger's interaction with Elisa was a bit awkward since they were not introduced formally and Elisa was a bit professional as she entertains the stranger. On the other hand, Elisa was comfortable with Henry since they have been friends for a while already.
In the Interaction between Elisa and the stranger, he leans over and then actually enters to the garden, showing that he is more forward and sort of aggressive, meanwhile, Henry seem to respect more her personal space, he does not get in the garden, remains outside.
Answer: Animal farms can teach us how easy power corrupts those who wield it and that when governors have more power than governed and how easy the power is to abuse or control easy.