Did Sidious mean to strike Vader with force lightning at the end of rotj?
I'm watching rotj (on blu ray) now and i've always thought this since i was a kid. Was Sidious trying to kill Vader with Force lightning for insubordination or has the force lightning just gone wild roasting the emporor, as well, hence the Sidious's yelling. And if so is he yelling because of pain of Vaders' betrayal.
And why couldn't Sidious just stop force lighting, of force jump off vader. and roast him as well as luke.