Mad Old Lu
Super Freak
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I can't believe I mis-remembered who said that line! That's what I get for skipping Jedi when I re-watch the movies! (for the record I only watched ANH and ESB on my last go-round a couple of months ago)!
But yes, I remember now. It did always bother me about the lightsaber line, though. And I can see how it would p*ss Luke off that the emperor would say his lightsaber looked like Vader's and not Obi's!