"What do you mean what I'm going to do?" Zacharias asked him a bit sourly. "What do you do, predict the fu-" Oh, right. Merlin was a Seer. So he did see the future. Some bit of the future anyway, depending on how good he was.
The former Hufflepuff scowled briefly, before the expression melted into a neutral one and he sat back in his chair, crossing his arms over his chest. "And what do you think I'm going to do? Hex you? Hit you? Because while it's true that I'm not the nicest person in the world-" Zacharias was well aware of his reputation and the truth to it. To friends, people he cared about, he could be the nicest person in the world. But to others he was a prat, a snob, and many other things. "-However I'm not in the habit of hurting defenseless sorts." Which Merlin definitely was. "So I think you're Seeing wrong."
That Merlin meant something else entirely did not occur to him.