I
have twin girls and they like to fight (pulling
hair, biting, snatching etc.) BUT, when they are in
good mood, they will play with each other and this
is followed by laughter. Sometimes dealing with
fights really tires me out and I simply let them
settle their problems by themselves. And I noticed
that one of them will back off after awhile. This
continues everyday! It's seems like they have
become immune to it.