To add to my post @14:0 today, I have travelled widely on Britains rail network for work purposes since the mid-90s. In that while often standing in the Buffet Car (when they existed) always found people could be very chatty even when you have never met them previous.
On one occasion travelling back from London the train, I was standing in the Buffet Car at the end of the counter enjoying a small glass of cider when a young woman started struggling to get on board the train while stopped at Reading with two large holdall bags. I gave her a hand to get the bags into the luggage rack in the next car and then returned to my drink.
I then found that the woman had followed me back into the Buffet Car and asked me if I would care to join her in a drink as she had something to celebrate. She then started on the miniature short bottles herself downing two in a few minutes while telling me she had left her husband in the last hour although he would not know that until he returned from work late that evening.
She was speaking in an excited and very loud manner while telling me all the problems there had been in her relatively short married life right down to the "performance" he had expected from her in the bedroom and many other parts of the house.
I could sense that other passengers nearby standing in the car were turning to listen and I began to hope they did not think I was in any way involved in her doing "a runner." She also must have sensed that and began telling them also, and the whole conversation developed between six or eight of us around her marital problems while the Buffet Car Bar did a roaring trade as we all celebrated her "break for freedom".
The woman left the train at Bath to live temporarily with her sister, while we all continued to discuss her situation until I had to leave the train a Yatton in North Somerset. I then decided I would have to leave my car at the car park due to having consumed a few beers while all the above was taking place on the train.
I finally staggered in the door at home very late after waiting in the adjacent station pub for a taxi, only to be reminded by my wife that I had promised she could have my car next day while hers was in for service....Oh Dear.