Q: Do you have ever committed a crime or have criminal record?
For heavens sake even though down under they understand jokes, do not try your luck with an answer:
A: Is it still required? :)
Depending the person interviewing and how bad day have had already, they may get you some feedback and give a lesson. I don't know if this is true, but that what those colleagues then told and I think I'm gonna believe and not try joking in that situation.