OmegaV6,
your comment ref changing into blues reminds me of the time we picked up the AOC and his PSO at Gander. We were to take him down to Belize in our 'K'.
We had been warned before we left the UK to be on our best behaviour with KD, black tie and black shoes before leaving the a/c-no bondu boots !
So we arrive in Belize and put nice clean KD on our sweaty bodies . The AOC and his man are nowhere to be seen. We climb off and get into the transport. The AOC and PSO already on board still in their flying overalls. He whispers something to the PSO who asks why we have got changed. The captain answers by handing him his copy of GASOs with the page about crew dress regulations open. Mucho embarrassment to VIP and we are of course bursting to laugh, but no one dares to. At least not until we have our debrief beer.