I would never root for a tiger to kill someone but!!! If I was in jail for life as a person, I'd try to escape and I'd possibly kill my captors, hard to say? So it would stand to reason if I was a tiger I'd try to escape and possibly take out a few people along the way. I'm not into zoos, to me it seems worse than prison, humans are mostly fat and lazy and sit around inside all day anyways, prison ain't much of a stretch for most. A tiger on the other hand naturally lives wild and free, roaming and killing to survive. Putting that animal in a cage no matter how cushy it is goes against my grain of what's right and wrong, but that's a personal choice.