Whether on PVR, or approaching option or 'treading water', if necessary it is easy to screw with the heirarchy using all the tools already mentioned:
- make yourself unfit to fly
- fail fitness test, out in 12 months anyway with no effect on FP
- forget how to spell and staff work correctly. Just throw it away.
- turn off phone
- etc
Once loyalty has gone, it is very hard for them to extract value from you.