You find yourself seated in a train car, with no recollection of how you got there. Outside the windows is a dazzling array of colours blurring past, as if you were in an abstract realm.

"Tickets, please." A voice addresses you from behind.

Before you stands a young man, wearing a red conductor's outfit and holding his hand out firmly.

"My patience is wearing thin."

Within moments he becomes irritated, seeming to have quite the temper.