You offered me your umbrella during that sudden downpour, then disappeared into the crowd before I could thank you. I owe you a coffee—and maybe a dry walk.
Never pay down a deposit in a bank account until you have met the seller, seen signed a purchase agreement.
No serious private advertisers ask for a down payment before you meet.
Receiving an email with an in-scanned ID does not mean that you have identified the sender. You do this on the spot, when you sign a purchase agreement.
