I remember some time ago reading the story of a passenger guard who was rostered to work a Factory Day excursion from Nottingham to Portsmouth.
All went well on the outward journey, and, as he had about 5 hours before returning, decided he'd go over to the Isle of Wight, as he'd never been before.
On the way back, his ferry broke-down, and, much to his anxiety, he eventually arrived back in Portsmouth just as "his" train was pulling-out with a "spare" guard [those were the days]. So he jumped on the next service to Guildford to catch it there, but the same thing happened - as he pulled in, "his" train was being taken on by another "spare" guard. And he chased his own train all the way back to Nottingham.
When he got back, the depot was closed, so he quietly slipped off home in disgrace. The next day he went in, expecting "Please explain" demands waiting for him, but no-one said anything. He kept a low profile, and was glad to get home again after his shift. He was still feeling very guilty about what had happened. The following day, and the day after that, was the same. No comment. No mention of it at all. 'Have I got away with it?' he dared to wonder.
Weeks turned into months - nothing - all was normal. He'd forgotten all about it until he found he'd been rostered for exactly the same excursion, for the same factory, on the equivalent day one year on.
He turned-up bright and early that morning, to find a note from his manager saying, "See me"
Nervously he knocked on the door of that august character, to be met with a sly grin as the manager simply said:-
"Do try to bring it back this time"