On Saturday I travelled from London to Cardiff on GWR, with a bicycle and a fair bit of luggage (rucksack + panniers on the bike). I boarded the train, immediately realised that (a) I had no idea how you're supposed to put the bikes in the bike compartments, and (b) if I tried to figure it out while still wearing my large rucksack I'd largely block other passengers from boarding. I therefore instead quickly went to look for seat and having chosen one, left the rucksack on it. so I could return to the bike to try to figure out how to properly get it into the bike compartment. I thought that would only take a few seconds and I'd quickly be back to the seat where I'd left my rucksack
...
My intention is to take this up very seriously with GWR, demand a full apology, and make it clear that I regard their actions as attempted theft of my luggage and that if I hadn't had the good luck of retrieving my bag in the nick of time, I would now be in the process of taking legal advice with a view to suing them for many thousands of pounds (ruination of several days of trip, plus the value of the stuff in the rucksack).
But thought I'd post here fiurst to see what people think.