The Best 2007 News Story About a Tiger Escaping at a Zoo and then Killing Some Dude goes to:
The tiger at the San Francisco zoo who escaped and then killed some dude story.
I have to admit that I thought it would be funny this past year to release an animal at the zoo in my area so that I could watch the ensuing chaos. I busted open the display window with a rock and ran away when no one was around. I waited around for a while and when nothing happened I just went home. As it turned out, sloths are very savaged and cages are just kind of optional for them really.