[Vader's masked face turns. If such a mask could look bored, it would, but alas it is as unmoving as ever. There's no reason to reply, yet some part of him wants to anyway, simply because this is a novel experience.]

Perhaps. Or perhaps not. You'll find glib words and mockery to be...less than effective...in answering that question.

[The threat of 'continue at your own peril' is implied, no need to waste breath on that.]

If it is attention you seek, you have it. Is this a request for an audience?