I don't know if I've told this one before ...
The Irish railway back in the 1980s, probably still CIE then, had a similar vehicle, the Executive Saloon. Someone here can probably give its detailed background. Now a business customer of mine at the time was making a significant investors' trip to some rural places in Ireland, by road coach, ending up after a couple of days well down the Sligo line, maybe around Carrick-on-Shannon. And someone else found out about this Executive Saloon, and booked it for the return to Dublin. You could have catered dinner on it, etc, and it was attached to the rear of the regular train, being sent out earlier in the day from Dublin. Cost a bomb, as you can imagine. The prospect of it was quite the discussion point of the trip apparently.
So, 6pm at the end of an arduous couple of days, they are delivered to the station. In comes the train from Sligo, GM loco, four standard class carriages ... and that was it.
Nothing for it but to get on board, and seek out the guard, where the following happened:
"Executive Saloon? Oh, no, gentlemen, not on this train. No we hardly ever see it on this line. But it's funny, you know, because my colleague told me that only yesterday it was actually provided for this train, stewards and all. And do you know what - the people never turned up ...".