Ignoring the Saudi part of this individual scenario, in my experience filthy rich folk rarely carry much cash (they've got their Coutts and Co black card, after all). Self-employed, tradesmen, people who work low-paid for cash - they are the ones walking about with a stack of tenners.
I'd have done the right thing (in the OPs scenario, with Mackenzie 's purse, and your photos). Like you though, I'd have been FUMING to not receive a thank you. Not a reward - just an acknowledgment of thanks. I get UNREASONABLY annoyed if I so much as hold a door open for a stranger, or let a...
This is the strangest answer on the whole thread!
You'd steal the £850 sterling, and leave behind the other £800 in foreign notes? Why on earth would you do that!?
No - its all recorded. The OP is the finder. The police will presumably make efforts to identify the owner so he can collect it, and if they are unsuccessful or if he does not come forward, the OP takes ownership after a set time.
Justify it to yourself however you like - if you'd have kept the cash / wallet in the OPs scenario, or if you found it 'walking the dog late at night' you'd be a thief, plain and simple. There's really no argument.
A tenner found on the pavement really isn't the same moral argument at all...
What's your threshold?
£500 fair game to steal?
What if it was only £200 but it was a REALLY expensive looking wallet?
£80 but they had Amex and Coutts and Co black cards?
Fingers crossed for you. I hope your honesty is rewarded. Maybe they will just be SO filthy rich, that they'll just shrug, and not even BOTHER trying to recover it.
Ignoring the ethics of that course of action, you'd be pretty stupid to do that. You'd be on CCTV lifting the cash, and then have your name taken when you handed the wallet in. If you were going to nick the money, you'd want to lob the wallet in a bin.
The very fact that you actually KNOW how much cash was in it, rather than 'a load of cash', means that you were seriously tempted, whatever your final call.
Personally, because a) I'm pretty straight, and b) you were 100% certainly on CCTV... I'd have handed it in, but would first have left a...