[RACooper]

Sorry PeppyGPhiB but I have to disagree here because of one important bit mentioned in the article - the fact that the "tools" in question and the evidence shows that they where both in violation of the Zoo's safety warnings (by standing on the railing), and that this also suggests that they were doing far more than "waving at it" or saying "Hi, Tiger"... I'm pretty confident that they were baiting the tiger by dangling their legs or something in stupid drunken/high bravado - and the fact that the tiger was pissed off or agitated enough that it shredded it's claws getting out at them sorta backs that up I think... or shows evidence that the tiger made more than one leap and claw at the wall for some reason (looking at the claws I mean).