From the newest Batman film (which I just saw today)
warning: contains a minor plot spoiler.
Let me get this straight: You think that your client, one of the wealthiest, most powerful men in the world, is secretly a vigilante who beats criminals to a pulp with his bare hands. And your plan is to blackmail this person? Good luck with that.
And of course, the worst ever threat
Slartibartfast: You must come with me.
Arthur Dent: Who are you?
Slartibartfast: What? No. My name’s not important. You must come with me, or you’ll be late.
Arthur Dent: Late for what?
Slartibartfast: Well, um, what’s your name Earthman?
Arthur Dent: Dent. Arthur Dent.
Slartibartfast: Well, late as in the late Dentarthurdent. It’s a sort of threat. You see?