The EPA has released details of incidents at NZ zoos over the past financial year (April 2013 - March 2014). Most of these have previously been noted on ZooChat, but not all. The severity of the issues ranges from minor to fairly major, but in no cases were the public injured, although there were a couple cases of minor injuries to keepers. The full story is here: Zoo subjected to escapes galore | Stuff.co.nz although I have not been able to find the EPA's report into the incidents online.
Quite a catalogue of interesting mishaps, fortunately none too serious. I like the idea of the determined male Siamang pulling himself across a moat using weeds as handholds. But was he trying to attack his taunting audience, or get away from them?