About 15 years ago I went to use a cashpoint and found it was already on the withdrawal screen. I wasn't sure if what I was seeing was true, so took the option to withdraw £10.
At that point I realised that someone had simply walked away from the cashpoint leaving their card in there. So I removed the card and got my b/f to hand it in - with the money - at the local police station. I thought he looked more honest than me
Fast forward to last year when I made a withdrawal from my account, took my card and walked away without taking my money.... The man behind me in the queue ran after me, crossing a busy road in order to return it. Cashpoint karma.
No camera story, but I did drop an uninsured mobile down the toilet. I had a stack of books in my hands with the phone on top and went into the bathroom to get a tissue. In slow motion I watched the phone slide off the books and into the open toilet. How many times did I replay that in my mind, with a different ending...?