With the whole tragedy of the Pittsburgh Zoo, I was thinking about zoo officials/zookeepers. I know in some situations, it is police officers that make the decision to shoot an animal to save a human's life. But what if you were a zookeeper and you had to make that decision? Do you think it would be hard since you probably have a personal relationship with that animal? Do zookeepers ever have to be put in that situation or does someone higher usually step in since they may have more of a detachment?