I read this anecdote online about a US business dealing with Japanese partners (clients?). There's an item they'd like to discuss, in their regular meeting they bring it up, and the Japanese said "Hmm, this is possible. Let's discuss it next meeting.". Next meeting, they ask again, and the reply was the same. It took them a few rounds to realize that the actual (never uttered) answer is "No, this isn't possible."...
A Big Boss comes in and tells his vision for the future of the company and what they should do. Middle Bosses nod and agree.
Right after BB leaves, all Middle Bosses have a meeting where they try to figure out WHAT THE FUCK the Big Boss just said and what did he actually mean =)