This lovely animal was in the news not too long ago involving tragic death at a zoo in San Francisco. The tiger was being a tiger. The humans being humans. Neither had a pretty outcome and both completely unnecessary.
I have views about the concept of zoos. While they do allow intimate views of animals that would never ordinarily be observed, they also house animals in a confined, often hostile environment, especially large animals, such a tigers who have much larger territories than a penned enclosure.
Mental and physical problems arise in the animals and they often react, both as a wild animals should and as stressed wild animals should. However, humans always conclude this behaviour as out of character for the animal.
I'm always on the side of the animal.