Thank you fearcampaign I was going to post a link.
Desperate to do a deal after being frozen out whilst QF management wedged everyone with JQ, AIPA threw out a protection that really 'Advanced the Interests of the Membership and Profession'. As former colleagues readily remark, many still think night credits are for salary, but Qantas pilot forebears had the insight to insert something in the contract to protect pilot's health, particularly those pilots not yet exposed to the potential health consequences of repeated time zone changes.