When I worked at a zoo, we had someone steal two peachicks.

We also had people jumping the fences all the time, especially on free admission days, but no maulings (which is good and bad; I'm of the opinion that anyone who jumps into a cheetah, bear, alligator, or cougar cage deserves what they get. However, draconian laws not infrequently require the animal be killed without good reason if such happens, and that would be bad.)