" If you ask, “I’m not saying I’ll buy this refrigerator, but if I do, when do you think you could deliver it?” he’ll say, “When would you like it delivered?” When you reply, “How about early this afternoon?” he’ll say, “Why so soon?” At that point one of you will comment, “Because we have about seventy dollars’ worth of food spoiling rapidly. "

― Herb Cohen , You Can Negotiate Anything