On the other hand, a person’s urgency to get something done can work in your favor. If the other person is in a hurry to get things done, you can be assured that he will be more willing to bend than he would in a normal situation.
A word of caution – never exploit the other person’s urgency to such an extent that it makes the deal grossly one sided. You may get what you want one time, but such deals have a negative impact on your reputation and future business. A win-win situation is always desired.