Surely you can resign from training for 'personal reasons' stating that you wish to go 'back to Line duties'. It's not a life sentence. You just don't want to do it any more????? What's the problem with that?
Big picture is if 50 'Management reps' throw the towel in at the same time ( let's
make it 49) a few interesting things would happen. Firstly the Cathay Flying Circus 'spokeswoman' would be a bit pushed for an explanation and, secondly, the public may well opt for an alternative and then, God help us all, some peoples' bonuses may be at risk!!!!!