I had an experience like this about 6 years ago.
Not on first class tho.
It was a train on the northern line (I think that's what it was called) it started in Manchester.
It was a horrible experience.
Most of the passengers were football fans.
I got on and I had a seat reserved, however someone was in my seat. I just kept saying my seat number and thankfully the man sitting there got up.
The rest of the people sat next to me were very young, and
they weren't too bad, very chatty and drunk
They had so many cans of beers, they kept encouraging me to drink and telling me to come with them for more drinks.
It was weird.
The train was so chaotic
We did have a conductor who was just silent
And the fans seemed to have a woman with them, no idea who she was supposed to be but she seemed like a tour guide or something. The men were so rude, seemed like they had never been to a city before, they kept going on about how many Asians were in the city and saying racist remarks.
And the lady kept saying, aww come on now, don't be like that, and they were saying, but you know what I mean init
Anyway, they all got off in Sheffield,and everyone was so relieved.
And most of them had no ticket at all! The men kept on boasting about that, and were laughing at a few who said they did have tickets
Conductor knew, and didnt say a word.
So bizaare, are they told to just transport these hooligans from place to place I wonder?
There were far too many to even try and control
The train was packed and you couldn't even move
They were sat on the floor, standing everywhere, ugh
I've never taken a northern line train again!