Since I was first old enough to purchase a young person’s railcard, I have travelled quite regularly by train across the UK. It’s easy, convenient and depending on where you are travelling can be quite cheap as well. I’ve also travelled by train in other countries, notably when I went interrailing with a group of friends. Stations are fantastic places to people-watch, as are trains themselves, and as you begin to stack up the number of journeys you have taken, you begin to spot patterns in people’s behaviours. One of these is the classic window seat discussion.