In the courtroom, it's where a lawyer really becomes an actor. There's a very fine line between delivering a monologue in a play and delivering a monologue to a jury. I've always felt that way - I've been in a lot of courtrooms. The best lawyers are really theatrical.
The great charm and comfort of the system is, that its affects are palpable within a week of trial, which creates a natural stimulus to persevere for few weeks more, when the fact becomes established beyond question.