Buyer Representation Gone Bad or Just a Bad Relationship??

I was at CE event recently and I was approached by an agent I had worked with at a Brokerage House I had worked at in the past. Nothing unusual about that, we all interact on a daily basis and do a little chit chatting at these events.  But as I was talking to him he received a phone call and proceeded arguing profusely with the person on the other end of the line.  They continued going on and on for about ten minutes. I ended up just walking away because it was obvious the agent could not communicate with the person on the other end of the line.  A few minutes later, the agent approached me and asked if I would mind helping him out with a problem he was having.  I said sure, what's seems to be the issue.  He said, "You probably overheard the phone conversation I just had?"  I said of course.  Seems as though you and your client are really having trouble communicating whatever the issue is between you.  He said, "Yes we are, the problem is, that it is my wife"! I said you're kidding me right?  He said, "No, we just sold our house and are purchasing another and my wife is refusing to sign the buyer representation agreement."  Needless to say, I was doing everything I could to keep from falling to the floor in laughter to actually feeling bad for this poor guy.  I've only had a few clients that even felt uncomfortable about signing this document, but I've never had one refuse to after I explain the pros and cons the document presents. Generally, clients feel it is necessary and understand the need for such a document to exist.  It clearly helps identify the role each participant takes outlines for the buyers what can be expected of the Real Estate professional.  As funny as I found this incident to be, I am curious to get feedback pro or con from fellow agents and buyers past and present as to your take on the buyer representation agreement.