We've all had that moment of sheer panic when you hop off the tube only to realise just as the doors are closing that you've left your wallet/phone/entire bag on the train. You can shout, scream and manically bang on the tube doors all you want, but once that train whizzes off to the next stop, your stuff is long gone. Or is it?
Last year, TfL's lost property office collected a record 300,000 lost items and 22 percent of them were returned to their rightful owners, including a brown envelope stuffed with £15,000 and an urn of ashes that had been sitting in lost property for almost seven years.
And that's barely scratching the surface on the weird things that get abandoned on London's tubes and buses. Distracted Londoners have managed to leave behind a full-size carpet, a judge's wig, a hairdresser’s mannequin, a life-sized Spider-man doll, a drum kit and a prosthetic leg. Yes, really.
Losing your oyster card with £2.50 credit on it doesn't look so bad now, does it?
But this should cheer you up – someone's taken London's worst tube adverts and made them way better.