I knew somebody a few years ago who ran a small, very successful business. When it came to negotiation he had a unique closing technique. Right at the end, when contacts were to be signed and hands shaken he'd go along to the final meeting with a briefcase and before he signed the contract he'd ask for one final reduction in the price. The reaction was predictable. After weeks, perhaps months of selling, discussing and fine tuning the deal, to be asked for a further discount on top of what was already agreed, the seller would invariably be perplexed and disappointed. Then the briefcase would be opened. Cash. The full amount in cash, now, if they'd take the revised offer.
Did they accept the offer?