Section 20A of the Civil Aviation Act is pretty clear........
20A Reckless operation of aircraft
(1) A person must not operate an aircraft being reckless as to whether the manner of operation could endanger the life of another person.
(2) A person must not operate an aircraft being reckless as to whether the manner of operation could endanger the person or property of another person.
There is a certain irony in the fact that recklessness often leads to a wreck.