Tash and cravats. Isn't that what's all about? When the CO looks into your eyes and says "...if that's how you feel...but keep it in mind" you should be on your best behaviour. That is a tash with a life of it's own. It has lift, buoyancy, verve.
Also even though Stagg's cravat is a bit slovenly he still manages to pull it off with some pizzazz. Some things can be forgiven and this must be one of them. Just remember to press the matter no further.