When you spot an empty seat on a train, in order to rightfully claim it you must move as close to the arriving train doors as possible. You must judge the exact momentum of the train to stand in exactly the right place as it stops.

When the doors open you should immediately and confidently stride towards the seat. When seats are at stake, you are exempt from letting people off the train first.

If anyone else reaches the seat first, you must glare at the person in a mixture of despair and annoyance. Try to hide the psychopathic voice in your head saying ‘That seat was mine. MINE I TELL YOU. You will die in a horrific accident involving a lorry and a rusty fork.’