Rebated fares
In the 1970's 90% fare rebate was a privilege (NOT a right) and we usually managed to get away on the flights we wanted despite being wait listed. Even then we were warned that if we did not report back for duty on due date and time we risked our jobs. We almost always managed to get aboard as pax levels were in the 70%ages. Now airlines are packing them in with levels over 90% and I advised my staff, at least ten years ago, that the rebated fare "privilege" should not be considered a major beneficial factor in working for an airline. My point is that withdrawing the privilege sounds more dramatic that it really is. That is in my humble opinion.