If life were a movie,
this is the part where we would teach the chimps some "harmless" things, like blowing an airgun at visitors in retaliation for the visitors pounding on the glass, or how to push a "secret" button on a tree to get snacks (which doesn't sound half-bad to me) and then they would mutate, figure out how to work the locks, break out, and make a human zoo where they would force us to sit in cages and be mocked by toddler chimps and eat snacks out of fake trees. I just don't think it's a good idea.