Zoos are becoming facsimiles - or perhaps caricatures - of how animals once were in their natural habitat. If the right policies toward nature were pursued, we would need no zoos at all.
Accept that all of us can be hurt, that all of us can-and surely will at times-fail. Other vulnerabilities, like being embarrassed or risking love, can be terrifying, too. I think we should follow a simple rule: if we can take the worst, take the risk.