We are talking of legal transactions. From the moment the vendor meets the auctioneer or agent, there is a contract in place. There is also protection for vendor, agent and purchaser. Senator Ross has mentioned sealed bids. If there are to be sealed bids for property, then a third party must be present, perhaps some honest broker who would oversee the process. There are times when it might not be appropriate to sell a property to the highest bidder, but people must know why.