The thing is that there are times where there isn't a first foul...most of the double fouls I have called have been where the two players are both moving to a spot, neither is there first, neither is entitled to it yet and bam they hit, usually at this point they will separate on their own or I'll say something like, "Easy, " but occasionally the sumo match will begin and they will bang each other again.
That is the time to call one.
If you know two players are going to screw up the game...and we all have had them...again a double is a great tool because A) it shows them you are watching and B) it puts both one foul closer to the bench, that much sooner.
