stigelt - I can see why you might have raised eyebrows (I'm struggling with the comms argument, but I'm old school), nevertheless:
'with terrible food' - isn't most airline food terrible,
True. Now you may find that acceptable if you're exposed to airline food on an occasional basis (FWIW I don't think it is), but if it's part of your diet every working day it becomes less acceptable and more of a health hazard. As RHS has pointed out unlike other jobs there's not really the option to go and dine at a healthier establishment.
besides you can bring your own if you're that concerned.
For some who work long shorthaul shifts that would mean carrying possibly 2/3 DfT compliant meals every day through security...I'm sure some do it but again is it healthy long term? It
would generate the sort of fatiguing hassle that RHS is on about.