When I was working as a railway station supervisor, we had a handbag handed in as lost property. There were no fewer than 14 debit or credit cards in it. Further, there was a collection of 14 slips, which should have been destroyed shortly after receipt, showing all of the PINs for those cards.
There was also sufficient ID in the bag to enable me to phone its owner. I started to say "Look, it's really not my job to lecture you . . ." but she interrupted me with with "Yes, yes, I know. You simply can't believe just how much I've been panicking since I realised that I'd lost my bag. I promise to change all of the different PINs to just a single one and REMEMBER it, instead of having it written down!"
She was INCREDIBLY lucky that a fellow traveller had handed her bag to the train's conductor, who then brought it to my office. Someone else might simply have headed to the three cash machines at the station and started to empty her bank accounts and make cash withdrawals on her credit cards!