Harsh Judgments
I don't know how y'all have decided that the actions of three kids should exhonerate the SF Zoo's responsibility in this case.
If I'm responsible for the SF Zoo tiger exhibit, I'd be damn well sure that a tiger could not get out, even if provoked. Are we really satisfied with the thought that a wild animal taken out of the jungle and put into a cage is appropriate, so long as the animal can only scale the enclosure when angered?
I smell idiot as strongly as the rest of you, but if you run the SF Zoo, and you let your staff leave at 4PM but allow the public to run around after 5PM in the pitch black dark, are you really sure that idiocy isn't going to happen? And if it SHOULD happen, aren't you a bit miffed that rather than the idiot get mauled inside of a tiger enclosure where he may have deserved it, the enraged tiger had the ability to scale its enclosure, endangering anyone else in the vicinity of said idiot?
Yes, the kids took their own lives into their hands; but because of the inadequacy of the enclosure, they were also able to take into their hands all the lives of everyone else in the zoo. If they had died in the enclosure, it would be a totally different thing. They would have clearly owned the repurcussions of their actions. But they were mean to an animal, and they were able to get back out of the enclosure with their lives. So now they are mean daredevils who may have watched Jackass too many times. They were then chased and mauled by an enraged tiger who was able to scale its enclosure; this is the part that is unacceptable. The kid who died may have been mean to an animal, but he confronted an enraged 350 lb tiger in order to save his friend, and that action speaks of his character as much as any allegation of taunting.
As an aside: In Spain, men show their bravery by taunting and killing bulls. Indian snake charmers repeatedly taunt poisonous snakes. In the US, people watch Jackass and replicate stupid stunts. I'm not saying that it's ok, but if you're responsible for a 350 lb man-eating tiger which is exposed to the public unattended, you have to consider that possibility, and you have to make sure it's safe for anyone that may be nearby.