In the world of negotiating, we all run into negotiating situations that can be stressful.  

The other side gets upset with us for some reason, they rant and rave  and make a wide variety of threats, we try to keep things moving forward  and ultimately if we are lucky we are able to reach a deal with them.  Just imagine how hard it would be to be a member of the New York City Police Department’s Hostage Negotiation Team. Every negotiation that they go into is going to be stressful. 

How the heck do they deal with negotiations like that?