> Bruno was encouraged to build his whole life around the practice of asking humans for things. But after a few years, the scientists’ grant ran out and he was transferred to a different facility. When one of the lab’s scientists visited him there, he was distressed to see that Bruno seemed upset. He kept signing <i>Key</i> and <i>Out</i>. The scientist had taught the chimpanzee to communicate, but even in the face of a clear request, the scientist couldn’t help him.<p>Absolutely tragic. Leave them alone.