Realising that you hadn't travelled as far you thought whilst you were asleep on a train and in actual fact are at least an hour from home rather than a few minutes and don't seem to be going anywhere soon.
If I was paying for the ticket myself and hadn't been travelling all day and hadn't been away from home and my girlfriend for nearly a month I'd be delighted to get the £70 back! As it stands I've got nothing to gain other than being able to finish my book.
Realising that you hadn't travelled as far you thought whilst you were asleep on a train and in actual fact are at least an hour from home rather than a few minutes and don't seem to be going anywhere soon.