Bug watch – identify this insect

No, not the Bug Watch, just a bug you can watch. Does anybody know what this insect is? It is the second one of these we’ve found in our home in Western Australia. It’s very active and it smells horrible. YouTube Link For those of you who can’t access YouTube, here are some photos of the bug: A higher resolution version of the above picture is available here. This is the bug about to be given its freedom: On release, it buried itself in our lawn: In 25 years in Australia, I had never seen one of these until recently. …