Had a scally do just this on TPE the other day, claiming her Northern AP for an hour ago was an 'open return' :roll: Became slightly abusive after being told she'd need a new ticket, and declaring that she had no money, she was promptly booted off at Warrington to wait for the stopper half an hour laterIt also depends upon which TOC operates the service you're booked on and whether a different TOC operates the service you want to board. I have a huge issue with Northern Only AP tickets being regularly abused where folk are just boarding the first and fastest train they see.
In that case I would ask station staff first, they generally know where the guard/TM will be standing to do dispatch. That will cut down on the time needed to find him or her.I've got a quick thought about this. Say I'm at Doncaster, and a 225 turns up, or at MKC and there's an 11 car Pendo. By the time I've located where the guard is, they've been there maybe a minute or so already. Would a guard look kindly on being sought out in such a location to ask about derogation of ticket conditions when (s)he has important tasks to concentrate on to get the train despatched on time?