Not a screamer, a
barker, there is a difference.
(since I respond VERY poorly to people getting in my face I very rarely resort to that myself).
It is funny how much a defensive philosophy is a state of mind though -- it litermally permeates my game in every sport, and almost every game, that I play. Approach is always the same. Defenseive captain. Patience on offense waiting for an opening. I even play chess and defensively (and checkers when I was a kid).