Someone deposited a bank draft and had the bank manager clear it, but later, the bank draft was reversed. Other people have reported similar incidents many years ago.
Since bank drafts are proven to be an insecure and unreliable payment method, what alternatives exist for people selling high-value items? Would this protocol work?
- Buyer B and seller S meet at a bank that they both use.
- B gets the teller to withdraw the money as cash from his account.
- B gives the cash to S.
- S gets the teller to deposit the cash into his account.
- S gives item to B.
Would this work, or would even this possibly result in a reversal later? If this protocol is flawed, what protocol can be used to sell a high-value item?
Also, while I'm mainly interested in an answer for canada, I also wonder about the same question for other countries.
Assuming that the buyer and seller move at the same speed and become tired after moving the same amount of distance (neither can outrun the other and escape), what methods would allow them to meet up and have the buyer transfer X dollars to the seller and the seller transfer Y item to the buyer within the time limit T of being together? X would be above 5,000, and T would be 10 minutes (using bitcoin seems to work if T is increased above 1 hour and if the seller accepts the risk of volatile exchange rates).