Until CASA implements flight and duty limits for flight attendants (which I believe is a requirement under ICAO legislation as pointed out to CASA by ICAO under an audit a couple of years ago), we will see the continued exploitation of people by big business who do not care about the welfare of their employees and are too blind to see the safety implications of having fatigued flight attendants. Remember that a flight attendant's primary role is one of safety. You CANNOT have fatigued personel operating in a safety role.