A helpful guide to what I might say based on my situation.
If you don't believe in my awesome powers, "I find your lack of faith disturbing."
If you've said you're sorry, "Apology accepted."
If you are doing something for me, "It is your destiny."
If you are protesting your treatment, "Do you think you're being treated unfairly?"
If you refuse to acknowledge my superiority, "You don't know the power of the dark side."
If you are resisting admirably, "The Force is strong with this one."
If you do something cool, "Impressive. Most impressive."
If you are totally in my power, "I have you now."
If you do something stupid, "You have failed me for the last time."
If you have some of my property, "No disintegrations."