I think it is irresponsible of the forum as a whole to indicate something is allowed based on the theory that no-one has been stopped for doing it (which is where many threads would otherwise end up). When I started on the railway, my trainer was of the opinion that whilst it is nice to know all the shortcuts, it's better to know how things should be done and what rules apply so that if things go wrong you know exactly what you have done wrong, what you have got yourself into and possibly a way to get out of it. So, I prefer the posters are aware of the implications of a decision and the rules that surround it. To that end, I point out where the rules differ from 'popular opinion' and what might happen. I do occasionally point out that what can happen and what does happen aren't always the same. In the case of through trains, the rules are quite clear and passenger friendly. It's very rare I know, but it does happen. The rules are clear, through trains always follow a permitted route (NRCoC Condition 13) and break of journey is allowed along any permitted route unless a ticket prohibits it (NRCoC Condition 16). An RPI could do that, however, I would be surprise if, when faced by evidence in the contract (NRCoC), the TOC and/or it's agents continued any proceedings against the ticket holder. It does seem absurd, but I know of no rules that prohibit break of journey on permitted routes where the ticket normally allows break of journey. If there is such a rule I would welcome it being highlighted as it is off benefit to us all to know it. Currently I believe this situation is adequately covered by NRCoC Condition 13 and 16.