The one thing i've noticed about stormtroopers is that when a regular grunt rebel soldier comes by they always hit him in the first shot, but when a major charchter comes by they cant shoot for their live. LOL!
Actually it was Yoda who said, "A weapon they are. Obey orders without question for good or ill. For now they fight for us. Who is to say what the future holds?" A pity he didn't take himself seriously... makes sense though. The Jedi didn't quite measure up to how they were described in the old trilogy as a wise band of warriors. These guys were squabbling bureaucrats who were constantly wrong... it's a miracle they lasted until episode III!