Me: The CEO is wrong. I've confirmed it with his administrator.
Him: Could you double-check anyway?
Me: Of course......... Ok, I've checked with both of them together. The info I gave you is correct, and the CEO apologized for his mistake.
Him: You do realize that if I show up to the wrong place at the wrong time tomorrow, I'm coming back here to light you on fire.
Me: You're gonna light me on fire?
Him: Yes. Assuming that's not illegal. Hm. Maybe I should check with HR. One sec............. darnit. Apparently, that's not ok.
Me: Definitely over the line.
Him: ........... barely.
Me: I don't think I like your tone, sir.