And i think KSS act is more like a flamboyant, expressive guy that so full of excitement/passion & anger/enmity at the same time. This pair game is all about speed AND accuracy (since they are not really a powerful & super sharp attacking MD), two things that are very hard to reconcile on the court -if you play the MD game, you will certainly understand my assertion. It requires such laser focus & reduced pressure to enable them playing their game at the highest level, of which KSS uses his antics as a waste gate of that pressure & gains advantage over his opponent. And perhaps, just perhaps, the way other bigger, taller players look down upon him earlier in his career might create some of that anger & aggression in him, dunno.