BOAC
Whilst that may have been the case when flying boats were around you are wrong now.
Your comments re not fit etc are correct but no-one can force you to extend your duty past Scheme limits and you can "refuse".
Indeed in BA if you chose to limit your duty to Industrial (BLR's), as the cabin crew do every time, then you would be within your rights. Sure you would be in for tea and biscuits but along with your friendly BALPA rep they couldn't touch you.
This is even more important now as they are regularly rostering Scarebus to max FTL limits with terminal changes etc. You are looking at discretion before your first push of the day.
Discretion is just that. Yours.
1.Tired or
2.just can't be bothered or
3.you want to make a point.
In BA 1 is possible 2 improbable and 3 becoming more common.
However the right to refuse is just that.
Good luck to the guy involved. I hope he's a BALPA member and not a "I've given myself a 1% rise" merchant.
If you are a member Dental Flosse has got a problem.
I bet he hasn't done it to a BA secondee. He wouldn't dare.
NN