I had lunch today with a friend that works within the rail industry and used to work for the London Underground.
I was telling about my lost wallet stolen cash situation and it seems that is very common amongst pick pockets.
At one station he managed they had a set of doors that were not used but had a small gap at the top; once a year they were opened to be checked and when they were hundreds of dumped wallets were found behind. All complete with cards or travellers cheques but minus money.
Perversely, I wouldn’t have minded as much if my wallet had been stolen but it was found by a member of Virgin Trains staff.