I was on a busy train at the start of a 90 minute journey. Two chaps were sitting at a table for four with laptops bags etc spread out. I asked them to move their bags and was told " there are other seats!" I went elsewhere as I did not want to spend the journey in their company.
Ten minutes later, at the next stop, a group of young women joined the train. Two of them moved the bags and sat next to the grumpy guys, ignoring eye rolls, sighs etc; Their friends spread out in other seats.The group then used the table as their base to eat, drink fizz, do full makeup and hair, take lots of selfies, all accompanied by lots of happy screams.
I enjoyed it all very much...