User blog comment:MilitaryBrat/Lord Voldemort vs Darth Vader/@comment-4661256-20111216214351/@comment-4484220-20111217155023

Use the force to dodge them instead of block them? The spells may not be as fast as arrows, but they're not fast enough to dodge unless they were shot from a great distance, or if you were already in the process of hitting the dirt before the spell left the wand. And of course, Vader can't block the killing curse with his lightsaber or with his mandalorian armor, because the killing curse is unblockable. As for using force persuasion, Bellatrix may be psychotic, but that doesn't necessarily mean that she's weak-minded. The only death eater on this list weak-minded enough to fall victm to force persuasion is Pius Thickness. Even then Voldemort has had much experience with death eaters trying to betray him, and would immediatley know something's up, and act upon it. Even if Bellatrix could be persuaded, she would be down at Voldemorts had the moment she would turn on him. Even if he/she betrays him subtley, he would be able to tell. Because he's a master of legilimency. Every death eater that has tried to overthrow Voldemort has died the moment they started trying, even if they "stabbed him in the back."