Ancient Observer - You're right, they wouldn't be happy bunnies. Presumably though, they are intelligent people and I would imagine that they are able to look around and see the various incongruities dotted around premium cabins on BA. Last time I was on a ST ticket, there were people wearing velour tracksuits with tatoos in Club making it quite clear to every man and his dog that they were staff. Perhaps the airline could also help by not requiring staff travellers to refuse wash bags and engage in other behaviour that marks them out clearly as airline employees? I think PPRUNE is the least of your worries in this regard...