Old man fight

Until recently, we had two guys on one of the tiers in my unit that were best buds.  They would sit and watch tv all day with each other.  They are two pretty old guys.  Well, recently they got into an argument over the tv that turned into a full blown fight.  Happens all the time around here.  The funny thing was, a few minutes in they both get tired and sit down to take a breather.  Then they start up again!  Seriously, who stops a fight to take a breather?  Old men I guess.