Blimey...loads. I used to travel a lot between London & Aberdeen......
One time when I was about 23, I shared the compartment with a young woman and her little girl(5 ish) I don't know why but children and animals gravitate towards me. We were about 10 minutes into the journey , when the little girl had first engaged me in conversation and subsequently installed herself on my knee. I had struck up a conversation with the mother, who minutes later joined us on my side of the carriage. I asked her where they were going to.Edinburgh, she said, to be with her in-laws. She then began to sob uncontrollably as she told me ,that her husband had been killed in Cyprus. The sobbing continued so I put my arm round her to comfort her. She cried on my shoulder for ages before falling into a deep sleep. She had told me that she hadn't slept since leaving Cyprus and precious little in the few days before that, since her husband had died. Have you ever sat awake on a night-train, with a child sleeping in your lap and a woman cradled in your arm with her head on your shoulder? Not the most comfortable night I've passed.
Being an evacuee from London to Northants I was regularly put on a train at Kettering to travel to London on my own, the London relatives did not want their nephew to become countryfied. My dad being particularly flush one time gave the guard 10 shillings to keep an eye on me (a lot of money then)
The guard promised Dad that he would but failed to tell him but failed to mention a guard change at the next station, Wellingborough, where he got off