Ok! Well suppose you did.
They offer to employ your services / traffic lights at well over the odds, you get a bank transfer to your account from abroad, a complicated scenario ensues where there’s a disaster / murder / …. / they have to cancel, or other emergency. You’re asked to refund 50% of what they paid – cause of course they’ve wasted your time you get to kepp 50%.
Your bank statement looks like their “”cash”” has cleared : but as it is an international it never really does. And thats where you’re stung – and possibly done for money laundering. They always want their share back by a non reversible vehicle (western union / paypal gift etc)